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class="no-transition group" data-v-51288d80><section class="VPSidebarItem level-0" data-v-51288d80 data-v-edd2eed8><!----><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/%E5%86%85%E5%AE%B9%E7%B4%A2%E5%BC%95.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>返回上一层</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-51288d80><section class="VPSidebarItem level-0 collapsible has-active" data-v-51288d80 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h2 class="text" data-v-edd2eed8>3.编程思维体系构建</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.编程思维体系构建</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.0%20%E7%BC%96%E7%A8%8B%E5%85%A5%E9%97%A8%E4%B9%8B%E9%81%93.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.0 编程入门之道</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.1%E8%AF%A5%E4%BD%BF%E7%94%A8%E5%93%AA%E4%B8%AA%E7%BC%96%E8%BE%91%E5%99%A8%EF%BC%9F%EF%BC%9F%EF%BC%9F.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.1该使用哪个编辑器？？？</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h3 class="text" data-v-edd2eed8>3.2算法杂谈</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.2%E7%AE%97%E6%B3%95%E6%9D%82%E8%B0%88.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.2算法杂谈</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.2.1%E6%89%8B%E6%8A%8A%E6%89%8B%E6%95%99%E4%BD%A0%E5%AD%A6%E7%AE%97%E6%B3%95%E2%80%94%E2%80%94%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8OJ%EF%BC%88Online%20Judge%EF%BC%89.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.2.1手把手教你学算法——如何使用OJ（Online Judge）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.2.2ACM%20%E7%AB%9E%E8%B5%9B%E4%BB%8E%E5%85%A5%E9%97%A8%E5%88%B0%E5%85%A5%E5%9D%9F.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.2.2ACM 竞赛从入门到入坟</p><!--]--></a><!----></div><!----></div><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.3%E5%A6%82%E4%BD%95%E9%80%89%E6%8B%A9%E7%BC%96%E7%A8%8B%E8%AF%AD%E8%A8%80.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.3如何选择编程语言</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible has-active" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h3 class="text" data-v-edd2eed8>3.4C语言</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4C%E8%AF%AD%E8%A8%80.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4C语言</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.1FAQ%EF%BC%9A%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.1FAQ：常见问题</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.2%E7%94%A8%E4%BB%80%E4%B9%88%E5%86%99%20C%20%E8%AF%AD%E8%A8%80.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.2用什么写 C 语言</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.3%E8%A7%A3%E5%86%B3%E7%BC%96%E7%A8%8B%E9%97%AE%E9%A2%98%E7%9A%84%E6%99%AE%E9%80%82%E6%80%A7%E8%BF%87%E7%A8%8B.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.3解决编程问题的普适性过程</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.4C%E8%AF%AD%E8%A8%80%E5%89%8D%E7%BD%AE%E6%A6%82%E5%BF%B5%E5%AD%A6%E4%B9%A0.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.4C语言前置概念学习</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-2 collapsible collapsed" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h4 class="text" data-v-edd2eed8>3.4.5阶段一：编程属性</h4><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.5%E9%98%B6%E6%AE%B5%E4%B8%80%EF%BC%9A%E7%BC%96%E7%A8%8B%E5%B1%9E%E6%80%A7.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.5阶段一：编程属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.5.1C%E8%AF%AD%E8%A8%80%E8%87%AA%E6%B5%8B%E6%A0%87%E5%87%86%E2%80%94%E2%80%94%E9%93%BE%E8%A1%A8.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.5.1C语言自测标准——链表</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2 collapsible has-active" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h4 class="text" data-v-edd2eed8>3.4.6阶段二：文字冒险（cool）</h4><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6%E9%98%B6%E6%AE%B5%E4%BA%8C%EF%BC%9A%E6%96%87%E5%AD%97%E5%86%92%E9%99%A9%EF%BC%88cool%EF%BC%89.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6阶段二：文字冒险（cool）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.1.%E5%BC%80%E5%A7%8B%E5%86%92%E9%99%A9.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.1.开始冒险</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.2.%E6%8E%A2%E7%B4%A2%E6%9C%AA%E7%9F%A5.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.2.探索未知</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.3.%E6%8C%87%E6%98%8E%E5%9C%B0%E7%82%B9.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.3.指明地点</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.4.%E5%88%9B%E5%BB%BA%E5%AF%B9%E8%B1%A1.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.4.创建对象</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.5.%E6%8D%A1%E8%B5%B7%E7%89%A9%E5%93%81.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.5.捡起物品</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.6.%E7%BB%98%E5%88%B6%E5%9C%B0%E5%9B%BE.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.6.绘制地图</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.7.%E5%A2%9E%E5%A4%A7%E8%B7%9D%E7%A6%BB.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.7.增大距离</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.8.%E7%A7%BB%E5%8A%A8%E6%96%B9%E5%90%91.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.8.移动方向</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.9.%E7%BB%83%E4%B9%A0%EF%BC%9A%E7%94%9F%E6%88%90%E4%BB%A3%E7%A0%81.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.9.练习：生成代码</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.10.%E5%A2%9E%E6%B7%BB%E5%B1%9E%E6%80%A7.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.10.增添属性</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.11.%E8%AE%BE%E7%BD%AE%E6%9D%A1%E4%BB%B6.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.11.设置条件</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.12.%E5%BC%80%E5%90%AF%E5%85%B3%E9%97%AD.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.12.开启关闭</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.13.%E7%BC%96%E5%86%99%E8%A7%A3%E6%9E%90%E5%99%A8.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.13.编写解析器</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.14.%E4%B8%B0%E5%AF%8C%E5%91%BD%E4%BB%A4.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.14.丰富命令</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.15.%E8%B5%8B%E4%BA%88%E6%98%8E%E6%9A%97.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.15.赋予明暗</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.16.%E7%BB%93%E8%AF%AD%EF%BC%9A%E4%BD%A0%E7%BB%88%E5%B0%86%E8%87%AA%E7%94%B1.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.6.16.结语：你终将自由</p><!--]--></a><!----></div><!----></div><!--]--></div></section><section class="VPSidebarItem level-2 collapsible collapsed" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h4 class="text" data-v-edd2eed8>3.4.7C基础知识杂谈</h4><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7C%E5%9F%BA%E7%A1%80%E7%9F%A5%E8%AF%86%E6%9D%82%E8%B0%88.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7C基础知识杂谈</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7.1GDB%E5%88%9D%E6%8E%A2%E7%B4%A2%EF%BC%88%E7%BC%96%E7%A8%8B%E5%8F%AF%E9%98%85%E8%A7%88%EF%BC%89.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7.1GDB初探索（编程可阅览）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7.1.1%E8%B0%83%E8%AF%95%E7%90%86%E8%AE%BA.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7.1.1调试理论</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7.2C%E7%9A%84%E5%8E%86%E5%8F%B2%E9%97%AE%E9%A2%98%EF%BC%9Aundefined%20behavior.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7.2C的历史问题：undefined behavior</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7.3C%E7%BC%96%E8%AF%91%E5%99%A8%E5%B9%B2%E4%BA%86%E4%BB%80%E4%B9%88.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7.3C编译器干了什么</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-3 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.7.4Inline%20Assembly%E4%B8%8E%E9%93%BE%E6%8E%A5%E5%8A%A0%E8%BD%BD.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.4.7.4Inline Assembly与链接加载</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section><div class="VPSidebarItem level-1 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.5git%E4%B8%8Egithub.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.5git与github</p><!--]--></a><!----></div><!----></div><section class="VPSidebarItem level-1 collapsible collapsed" data-v-edd2eed8 data-v-edd2eed8><div class="item" role="button" tabindex="0" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><h3 class="text" data-v-edd2eed8>3.6Python（灵巧的胶水）</h3><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-edd2eed8><span class="vpi-chevron-right caret-icon" data-v-edd2eed8></span></div></div><div class="items" data-v-edd2eed8><!--[--><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.6Python%EF%BC%88%E7%81%B5%E5%B7%A7%E7%9A%84%E8%83%B6%E6%B0%B4%EF%BC%89.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.6Python（灵巧的胶水）</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.6.1%E4%BB%8ECS61A%E7%9C%8B%E7%BC%96%E7%A8%8B%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.6.1从CS61A看编程语言学习</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" 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data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.Y.6Vim初探索</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-2 is-link" data-v-edd2eed8 data-v-edd2eed8><div class="item" data-v-edd2eed8><div class="indicator" data-v-edd2eed8></div><a class="VPLink link link" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.Y.7linux%E5%B0%8F%E4%BB%BB%E5%8A%A1.html" data-v-edd2eed8><!--[--><p class="text" data-v-edd2eed8>3.Y.7linux小任务</p><!--]--></a><!----></div><!----></div><!--]--></div></section><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-d8b57b2d data-v-9a6c75ad><div class="VPDoc has-sidebar has-aside" data-v-9a6c75ad data-v-e6f2a212><!--[--><!--]--><div class="container" data-v-e6f2a212><div class="aside" data-v-e6f2a212><div class="aside-curtain" 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_%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)_3_%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA_3_4_6_12_%E5%BC%80%E5%90%AF%E5%85%B3%E9%97%AD external-link-icon-enabled" data-v-e6f2a212><div><h1 id="_12-开启关闭" tabindex="-1">12.开启关闭 <a class="header-anchor" href="#_12-开启关闭" aria-label="Permalink to &quot;12.开启关闭&quot;">​</a></h1><p>在上一章中，我们使用 &quot;条件 &quot;函数来使对象消失。当然，还有一个更简单的方法来实现同样的目的：只要清除对象的位置属性就可以了！</p><p>洞口是一个典型的例子，条件函数在那里工作得特别好。这是因为入口受到其他对象（守卫和银币）中的属性的影响；我们可以使用函数使得所有的逻辑都能保持一致。</p><p>让我们举一个更直接的例子。假设山洞有一扇门通向一个密室。只是一个简单的门洞，玩家可以打开和关闭。就像前一章一样，我们将使用两个对象来表示这个通道；一个表示打开的门，另一个表示门关闭时。</p><div class="language-txt vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">txt</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span>- backroom</span></span>
<span class="line"><span> description &quot;a backroom&quot;</span></span>
<span class="line"><span> tags &quot;backroom&quot;</span></span>
<span class="line"><span> details &quot;The room is dusty and messy.\n&quot;</span></span>
<span class="line"><span></span></span>
<span class="line"><span>- openDoorToBackroom</span></span>
<span class="line"><span> description &quot;an open door to the south&quot;</span></span>
<span class="line"><span> tags &quot;south&quot;, &quot;door&quot;, &quot;doorway&quot;</span></span>
<span class="line"><span> destination backroom</span></span>
<span class="line"><span> details &quot;The door is open.\n&quot;</span></span>
<span class="line"><span> textGo &quot;You walk through the door into the backroom.\n&quot;</span></span>
<span class="line"><span></span></span>
<span class="line"><span>- closedDoorToBackroom</span></span>
<span class="line"><span> description &quot;a closed door to the south&quot;</span></span>
<span class="line"><span> tags &quot;south&quot;, &quot;door&quot;, &quot;doorway&quot;</span></span>
<span class="line"><span> location cave</span></span>
<span class="line"><span> prospect backroom</span></span>
<span class="line"><span> details &quot;The door is closed.\n&quot;</span></span>
<span class="line"><span> textGo &quot;The door is closed.\n&quot;</span></span></code></pre></div><div class="warning custom-block"><p class="custom-block-title">🤔 思考题：尝试自己用 C 语言实现</p></div><p>自然，门也应该能从另一侧进入。</p><div class="language-txt vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">txt</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span>- openDoorToCave</span></span>
<span class="line"><span> description &quot;an open door to the north&quot;</span></span>
<span class="line"><span> tags &quot;north&quot;, &quot;door&quot;, &quot;doorway&quot;</span></span>
<span class="line"><span> destination cave</span></span>
<span class="line"><span> details &quot;The door is open.\n&quot;</span></span>
<span class="line"><span> textGo &quot;You walk through the door into the cave.\n&quot;</span></span>
<span class="line"><span></span></span>
<span class="line"><span>- closedDoorToCave</span></span>
<span class="line"><span> description &quot;a closed door to the north&quot;</span></span>
<span class="line"><span> tags &quot;north&quot;, &quot;door&quot;, &quot;doorway&quot;</span></span>
<span class="line"><span> location backroom</span></span>
<span class="line"><span> prospect cave</span></span>
<span class="line"><span> details &quot;The door is closed.\n&quot;</span></span>
<span class="line"><span> textGo &quot;The door is closed.\n&quot;</span></span></code></pre></div><p>注意我们只给封闭的门洞一个位置，开放的门洞没有。所以一开始，门是关闭的（因此你在右边看到的生成的地图中，山洞和密室之间有虚线箭头）。要打开门，我们所要做的就是交换位置。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">openDoorToBackroom</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cave;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">closedDoorToBackroom</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">openDoorToCave</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> backroom;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">closedDoorToCave</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span></code></pre></div><p>接下来，让我们创建一个辅助函数来适应这种情况。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">obj1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">obj2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">tmp </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj1-&gt;location;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj1-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj2-&gt;location;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj2-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tmp;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>现在可以用下面的语句来打开这扇门；一旦它被打开，同样的语句将再次关闭它。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openDoorToBackroom, closedDoorToBackroom);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openDoorToCave, closedDoorToCave);</span></span></code></pre></div><p>函数 swapLocations 不依赖于固定的位置，因为它在两个对象之间来回传递当前位置。</p><p>当相关对象是可移动的时候，辅助功能就特别方便。例如，一个盒子可以被打开和关闭，但它也是一个可以被拿起并移动到其他地方的物品。换句话说，它的位置是不固定的。</p><p>当然，一个盒子不是一个通道：玩家总是在盒子外面。所以一对物体就够了，也就是说，我们调用一次 swapLocations 函数就够了。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openBox, closedBox);</span></span></code></pre></div><p>这或多或少是我们实现一些新命令 open 和 close 所需要的。下面是 open 的一个简单实现；close 的实现也类似。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> parseObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedDoorToBackRoom </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">||</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedDoorToCave)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openDoorToBackroom, closedDoorToBackroom);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openDoorToCave, closedDoorToCave);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;OK.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedBox)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(openBox, closedBox);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;OK.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openDoorToBackRoom </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">||</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openDoorToCave </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">||</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openBox)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is already open.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That cannot be opened.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><div class="warning custom-block"><p class="custom-block-title">🤔 思考题：你能不能仿照上面的代码实现 close 功能？</p></div><p>为了使事情稍微复杂一些，我们可以在门上或盒子上加一把锁。这需要（至少）三个相互排斥的对象；每个可能的状态都有一个：打开、关闭和锁定。但是我们仍然可以使用同一个函数来交换对象的位置。例如，这里是如何解锁一个上锁的盒子；反之亦然。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(closedBox, lockedBox);</span></span></code></pre></div><p>但这仅仅是不够的，我们对命令 open 的实现必须进行扩展，以处理新的对象 lockedBox。</p><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> lockedBox)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You can&#39;t, it is locked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">...</span></span></code></pre></div><p>显然，代码的行数与游戏中的门（以及盒子和其他可以打开的物体）的数量成正比。因此，如果你的游戏有不止几扇门，那么选择一个更通用的解决方案是个好主意。顺便说一下，这对每一个命令都是适用的：当它涉及到许多物体时，尽量写通用代码；但当你处理一两个特殊情况时，就坚持使用直接的、专门的代码。</p><div class="warning custom-block"><p class="custom-block-title">🤔 思考题：</p><p>我们可以使用什么方法来解决这个问题？</p><p>提示：C++ 中的模板功能（这只是一种选择）</p><p>下面我们将揭晓答案</p></div><p>通用代码通常带有数据驱动的方法。换句话说，我们需要向我们的对象结构添加一个或多个属性。在这种特殊情况下，我们将为我们希望支持的每个命令添加一个函数指针：打开、关闭、锁定和解锁。</p><h2 id="object-txt" tabindex="-1">object.txt <a class="header-anchor" href="#object-txt" aria-label="Permalink to &quot;object.txt&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdbool.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdio.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;object.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;toggle.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">typedef</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> struct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> object {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> bool</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">condition)(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">description;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> **</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">tags;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> struct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> object </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> struct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> object </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">destination;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> struct</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> object </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">prospect;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">details;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">contents;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">textGo;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> int</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> int</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> int</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> health;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">open)(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">close)(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">lock)(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">unlock)(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">} OBJECT;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT objs</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">[]</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;an open field&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;field&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The field is a nice and quiet place under a clear blue sky.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">9999</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a little cave&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;cave&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The cave is just a cold, damp, rocky chamber.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">9999</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> silver</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a silver coin&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;silver&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;coin&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;silver coin&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The coin has an eagle on the obverse.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> gold</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a gold coin&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;gold&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;coin&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;gold coin&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location openBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The shiny coin seems to be a rare and priceless artefact.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> guard</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a burly guard&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;guard&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;burly guard&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The guard is a really big fellow.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> contents </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;He has&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> health </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">100</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">20</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> player</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;yourself&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;yourself&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You would need a mirror to look at yourself.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> contents </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You have&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> health </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">100</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">20</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> intoCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> condition { </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">return</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> guard-&gt;health </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> ||</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> silver-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> guard; }</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a cave entrance to the east&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;east&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;entrance&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> destination cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The entrance is just a narrow opening in a small outcrop.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You walk into the cave.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> intoCaveBlocked</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> condition { </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">return</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> guard-&gt;health </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">&gt;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> &amp;&amp;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> silver-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> guard; }</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a cave entrance to the east&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;east&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;entrance&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> prospect cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The entrance is just a narrow opening in a small outcrop.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The guard stops you from walking into the cave.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> exitCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;an exit to the west&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;west&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;exit&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> destination field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Sunlight pours in through an opening in the cave&#39;s wall.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You walk out of the cave.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wallField</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;dense forest all around&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;west&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;north&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;south&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;forest&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location field</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The field is surrounded by trees and undergrowth.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Dense forest is blocking the way.&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wallCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;solid rock all around&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;east&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;north&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;rock&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Carved in stone is a secret password &#39;abccb&#39;.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Solid rock is blocking the way.&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a backroom&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;backroom&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The room is dusty and messy.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">9999</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> wallBackroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;solid rock all around&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;east&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;west&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;south&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;rock&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Trendy wallpaper covers the rock walls.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Solid rock is blocking the way.&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openDoorToBackroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;an open door to the south&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;south&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;door&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;doorway&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> destination backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is open.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You walk through the door into a backroom.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close toggleDoorToBackroom</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedDoorToBackroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a closed door to the south&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;south&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;door&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;doorway&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> prospect backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open toggleDoorToBackroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close isAlreadyClosed</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openDoorToCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;an open door to the north&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;north&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;door&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;doorway&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> destination cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is open.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You walk through the door into the cave.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close toggleDoorToCave</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedDoorToCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a closed door to the north&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;north&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;door&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;doorway&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> prospect cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> textGo </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The door is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open toggleDoorToCave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close isAlreadyClosed</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> openBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;box&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The box is open.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">5</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> capacity </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isAlreadyOpen</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close toggleBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> lock isStillOpen</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> unlock isAlreadyOpen</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> closedBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;box&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The box is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">5</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open toggleBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close isAlreadyClosed</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> lock toggleBoxLock</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> unlock isAlreadyUnlocked</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> lockedBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;box&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;wooden box&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location backroom</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The box is closed.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">5</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> open isStillLocked</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> close isAlreadyClosed</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> lock isAlreadyLocked</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> unlock toggleBoxLock</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> keyForBox</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> description </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;a tiny key&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tags </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;key&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;tiny key&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> location cave</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> details </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;The key is really small and shiny.&quot;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> weight </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span></span></code></pre></div><p>注意：</p><ul><li>第 89 行：乍一看，isAlreadyOpen 在这里似乎不合适；从技术上讲，intoCaveBlocked 是一个封闭的通道。但从故事上讲，它是一个不错的开场白。</li><li>第 169、180、191 行。如果你喜欢沉重的宝箱而不是盒子，那么你所要做的就是增加重量（并相应调整相关文字和标签）。</li></ul><p>为了避免重复的代码，我们这次特意没有使用匿名函数。相反，我们将在一个单独的模块中实现必要的逻辑。函数 swapLocations 也在其中，这不过是一个稍微扩展的版本，它也会向用户输出反馈。</p><h2 id="toggle-h" tabindex="-1">toggle.h <a class="header-anchor" href="#toggle-h" aria-label="Permalink to &quot;toggle.h&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeOpened</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeClosed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeUnlocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyClosed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyUnlocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isStillOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isStillLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleDoorToBackroom</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleDoorToCave</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleBox</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleBoxLock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div><h2 id="toggle-c" tabindex="-1">toggle.c <a class="header-anchor" href="#toggle-c" aria-label="Permalink to &quot;toggle.c&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdbool.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdio.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;object.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">static</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">verb1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">obj1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">verb2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">obj2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">tmp </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj1-&gt;location;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tmp </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> ?</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj1 </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj2;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">verb </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tmp </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> ?</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> verb1 </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">:</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> verb2;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj1-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj2-&gt;location;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj2-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> tmp;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (verb </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> %s</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, verb, obj-&gt;description);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
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<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeOpened</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That cannot be opened.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeClosed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That cannot be closed.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That cannot be locked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> cannotBeUnlocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That cannot be unlocked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is already open.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyClosed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is already closed.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is already locked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isAlreadyUnlocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is already unlocked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isStillOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is still open.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> isStillLocked</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) { </span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;That is locked.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">); }</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleDoorToBackroom</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, openDoorToCave, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedDoorToCave);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;close&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, openDoorToBackroom, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;open&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedDoorToBackroom);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleDoorToCave</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, openDoorToBackroom, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedDoorToBackroom);</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;close&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, openDoorToCave, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;open&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedDoorToCave);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleBox</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;close&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, openBox, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;open&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedBox);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> toggleBoxLock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (keyForBox-&gt;location </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> player)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> swapLocations</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;lock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, closedBox, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;unlock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, lockedBox);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You don&#39;t have a key.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>正如前面所宣布的，打开、关闭、锁定和解锁这四个命令的实现是完全通用的。</p><h2 id="openclose-h" tabindex="-1">openclose.h <a class="header-anchor" href="#openclose-h" aria-label="Permalink to &quot;openclose.h&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeClose</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeLock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeUnlock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div><h2 id="openclose-c" tabindex="-1">openclose.c <a class="header-anchor" href="#openclose-c" aria-label="Permalink to &quot;openclose.c&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdbool.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdio.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;object.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;reach.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;what you want to open&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj-&gt;open)();</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeClose</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;what you want to close&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj-&gt;close)();</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeLock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;what you want to lock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj-&gt;lock)();</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">void</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeUnlock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;what you want to unlock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) (</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj-&gt;unlock)();</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>上面，我们使用了一个通用函数 reachableObject 来处理不在这里的对象；其实现见下文。这样，我们就不必把同样的代码写四遍（每个执行函数写一遍）。更多的命令将在第 15 章中加入；这些命令将受益于同样的函数。</p><h2 id="reach-h" tabindex="-1">reach.h <a class="header-anchor" href="#reach-h" aria-label="Permalink to &quot;reach.h&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">extern</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">intention</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div><h2 id="reach-c" tabindex="-1">reach.c <a class="header-anchor" href="#reach-c" aria-label="Permalink to &quot;reach.c&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdbool.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdio.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;object.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;misc.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;noun.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">reachableObject</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">intention</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">const</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">noun</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> OBJECT </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">*</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">obj </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> getVisible</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(intention, noun);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> switch</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">getDistance</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(player, obj))</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distSelf:</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You should not be doing that to yourself.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distHeldContained:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distHereContained:</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;You would have to get it from </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> first.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">location</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">-&gt;</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">description</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distOverthere:</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;Too far away, move closer please.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distNotHere:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> case</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> distUnknownObject:</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> // already handled by getVisible</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> break</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> default</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">:</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> obj;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>同样，我们也要对 parsexec.c 进行补充</p><h2 id="parsexec-c" tabindex="-1">parsexec.c <a class="header-anchor" href="#parsexec-c" aria-label="Permalink to &quot;parsexec.c&quot;">​</a></h2><div class="language-c vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">c</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdbool.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;stdio.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &lt;string.h&gt;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;location.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;inventory.h&quot;</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">#include</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> &quot;openclose.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">bool</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> parseAndExecute</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#E36209;--shiki-dark:#FFAB70;">input</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">{</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">verb </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> strtok</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(input, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot; </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> char</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> *</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">noun </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">=</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> strtok</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (verb </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">!=</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> NULL</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;quit&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> false</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;look&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeLook</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;go&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeGo</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;get&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeGet</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;drop&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeDrop</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;give&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeGive</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;ask&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeAsk</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;inventory&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeInventory</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">();</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;open&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeOpen</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;close&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeClose</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;lock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeLock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> if</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> (</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">strcmp</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(verb, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;unlock&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">) </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">==</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> 0</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> executeUnlock</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(noun);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> else</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> printf</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;I don&#39;t know how to &#39;</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">%s</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&#39;.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">\n</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">&quot;</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, verb);</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> return</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">}</span></span></code></pre></div><p>注意：</p><ul><li>你可能已经注意到，object.txt 在本章中的大小几乎增加了一倍。我们已经可以向你保证，这只是一个开始。object.txt 是我们游戏数据的主要来源；一旦我们认真开始添加地点、物品和演员，行数很容易就会增加到数千行。</li><li>除了门和锁之外，函数 swapLocation 还可以用于许多其他事情。在第 15 章，它将再次被使用，这次是用来打开和关闭灯。</li><li>正如你在样本输出中所看到的，玩家可以从盒子里拿到金子，但他无法再把金子放回去！我们的解析器无法处理像把硬币放进盒子这样的 &quot;复杂 &quot;命令。因此，在下一章中，我们将编写一个全新的解析器：目前的双线实现急需更换！</li></ul><p>输出样例</p><p>Welcome to Little Cave Adventure. You are in an open field. You see: a silver coin a burly guard a cave entrance to the east dense forest all around</p><p>--&gt; get coin You pick up a silver coin.</p><p>--&gt; give coin You give a silver coin to a burly guard.</p><p>--&gt; go cave You walk into the cave.</p><p>You are in a little cave. You see: an exit to the west solid rock all around a closed door to the south a tiny key</p><p>--&gt; get key You pick up a tiny key.</p><p>--&gt; go south The door is closed.</p><p>--&gt; open door You open a closed door to the south.</p><p>--&gt; go south You walk through the door into a backroom.</p><p>You are in a backroom. You see: solid rock all around an open door to the north a wooden box</p><p>--&gt; unlock box You unlock a wooden box.</p><p>--&gt; open box You open a wooden box.</p><p>--&gt; look box The box is open. You see: a gold coin</p><p>--&gt; get gold You get a gold coin from a wooden box.</p><p>--&gt; quit</p><p>Bye!</p></div></div></main><footer class="VPDocFooter" data-v-e6f2a212 data-v-1bcd8184><!--[--><!--]--><div class="edit-info" data-v-1bcd8184><div class="edit-link" data-v-1bcd8184><a class="VPLink link vp-external-link-icon no-icon edit-link-button" href="https://gitea.xinxijishubu.asia/moyin/fzu-product/src/branch/main/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.12.开启关闭.md" target="_blank" rel="noreferrer" data-v-1bcd8184><!--[--><span class="vpi-square-pen edit-link-icon" data-v-1bcd8184></span> 在 Gitea 上修改此页<!--]--></a></div><!----></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-1bcd8184><span class="visually-hidden" id="doc-footer-aria-label" data-v-1bcd8184>Pager</span><div class="pager" data-v-1bcd8184><a class="VPLink link pager-link prev" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.11.%E8%AE%BE%E7%BD%AE%E6%9D%A1%E4%BB%B6.html" data-v-1bcd8184><!--[--><span class="desc" data-v-1bcd8184>上一小节</span><span class="title" data-v-1bcd8184>3.4.6.11.设置条件</span><!--]--></a></div><div class="pager" data-v-1bcd8184><a class="VPLink link pager-link next" href="/%E6%8A%80%E6%9C%AF%E8%B5%84%E6%BA%90%E6%B1%87%E6%80%BB(%E6%9D%AD%E7%94%B5%E6%94%AF%E6%8C%81%E7%89%88)/3.%E7%BC%96%E7%A8%8B%E6%80%9D%E7%BB%B4%E4%BD%93%E7%B3%BB%E6%9E%84%E5%BB%BA/3.4.6.13.%E7%BC%96%E5%86%99%E8%A7%A3%E6%9E%90%E5%99%A8.html" data-v-1bcd8184><!--[--><span class="desc" data-v-1bcd8184>下一小节</span><span class="title" data-v-1bcd8184>3.4.6.13.编写解析器</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-d8b57b2d data-v-566314d4><div class="container" data-v-566314d4><p class="message" data-v-566314d4>Made with ❤️ by ALL 协作者</p><p class="copyright" data-v-566314d4>Copyright © 2023-present Evan You && ALL 协作者</p></div></footer><!--[--><!--]--></div></div>
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start）\"},{\"text\":\"4.3人工智能导论及机器学习入门\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.3人工智能导论及机器学习入门\"},{\"text\":\"4.4FAQ：常见问题\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.4FAQ：常见问题\"},{\"text\":\"4.5图网络略述（intro&GCN）\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.5图网络略述（intro&GCN）\"},{\"text\":\"4.6数据分析\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.6数据分析\"},{\"text\":\"4.7如何做研究\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.7如何做研究\"},{\"text\":\"4.8科研论文写作\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.8科研论文写作\"},{\"text\":\"4.9从 AI 到 智能系统 —— 从 LLMs 到 Agents\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.9从 AI 到 智能系统 —— 从 LLMs 到 Agents\"},{\"text\":\"4.10LLM Agent之结构化输出\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.10LLMAgent之结构化输出\"},{\"text\":\"4.11本章节内容的局限性\",\"link\":\"/技术资源汇总(杭电支持版)/4.人工智能/4.11本章节内容的局限性\"}]},{\"text\":\"5.富有生命的嵌入式\",\"collapsed\":true,\"items\":[{\"text\":\"5.富有生命的嵌入式\",\"link\":\"/技术资源汇总(杭电支持版)/5.富有生命的嵌入式/5.富有生命的嵌入式\"},{\"text\":\"5.1嵌入式是什么？可以吃吗？\",\"link\":\"/技术资源汇总(杭电支持版)/5.富有生命的嵌入式/5.1嵌入式是什么？可以吃吗？\"},{\"text\":\"5.2New meaning of C\",\"link\":\"/技术资源汇总(杭电支持版)/5.富有生命的嵌入式/5.2New meaning of C\"},{\"text\":\"5.3还玩裸机？上操作系统！\",\"link\":\"/技术资源汇总(杭电支持版)/5.富有生命的嵌入式/5.3还玩裸机？上操作系统！\"}]},{\"text\":\"6.计算机安全\",\"collapsed\":true,\"items\":[{\"text\":\"6.计算机安全\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.计算机安全\"},{\"text\":\"6.1Web安全\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.1Web安全\"},{\"text\":\"6.2二进制安全\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.2二进制安全\"},{\"text\":\"6.3密码学\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.3密码学\"},{\"text\":\"6.4安全杂项\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.4安全杂项\"},{\"text\":\"6.5学习资料推荐\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.5学习资料推荐\"}]},{\"text\":\"7.网络应用开发入门\",\"collapsed\":true,\"items\":[{\"text\":\"7.网络应用开发入门\",\"link\":\"/技术资源汇总(杭电支持版)/7.网络应用开发/7.网络应用开发入门\"},{\"text\":\"7.1WEB开发入门\",\"link\":\"/技术资源汇总(杭电支持版)/7.网络应用开发/7.1WEB开发入门\"},{\"text\":\"7.2前端部分\",\"link\":\"/技术资源汇总(杭电支持版)/7.网络应用开发/7.2.1基础(三件套)\"},{\"text\":\"7.3后端部分\",\"link\":\"/技术资源汇总(杭电支持版)/7.网络应用开发/7.3.1基础部分\"}]},{\"text\":\"8.基础学科\",\"collapsed\":true,\"items\":[{\"text\":\"8.基础学科\",\"link\":\"/技术资源汇总(杭电支持版)/8.基础学科/8.基础学科\"},{\"text\":\"8.1经济学科普Part1\",\"link\":\"/技术资源汇总(杭电支持版)/8.基础学科/8.1经济学科普Part1\"}]},{\"text\":\"9.计算机网络\",\"collapsed\":true,\"items\":[{\"text\":\"9.计算机网络\",\"link\":\"/技术资源汇总(杭电支持版)/9.计算机网络/9.计算机网络\"},{\"text\":\"9.1 计网速通\",\"link\":\"/技术资源汇总(杭电支持版)/9.计算机网络/9.1计网速通\"}]}],\"/技术资源汇总(杭电支持版)/2.高效学习/\":[{\"text\":\"返回上一层\",\"link\":\"/技术资源汇总(杭电支持版)/内容索引\"},{\"text\":\"2.高效学习\",\"collapsed\":false,\"items\":[{\"text\":\"2.高效学习\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.高效学习\"},{\"text\":\"2.1高效的前提：摆脱高中思维\",\"collapsed\":true,\"items\":[{\"text\":\"2.1高效的前提：摆脱高中思维\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1高效的前提：摆脱高中思维\"},{\"text\":\"2.1.1悲壮的学习方式\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1.1悲壮的学习方式\"},{\"text\":\"2.1.2浮躁的心理状态\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1.2浮躁的心理状态\"},{\"text\":\"2.1.3错误的提问姿态\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1.3错误的提问姿态\"},{\"text\":\"2.1.4书籍的盲目崇拜\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1.4书籍的盲目崇拜\"},{\"text\":\"2.1.5错误的学习配比\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.1.5错误的学习配比\"}]},{\"text\":\"2.2优雅的使用工具\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.2优雅的使用工具\"},{\"text\":\"2.3高效的信息检索\",\"collapsed\":true,\"items\":[{\"text\":\"2.3高效的信息检索\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.3高效的信息检索\"},{\"text\":\"2.3.1阅读文档（B百度爬）\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.3.1阅读文档（B百度爬）\"},{\"text\":\"2.3.2检索论文核心内容\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.3.2检索论文核心内容\"},{\"text\":\"2.3.3优秀的开源社区\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.3.3优秀的开源社区\"},{\"text\":\"补充：为什么不要用百度\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/补充：为什么不要用百度\"}]},{\"text\":\"2.4优雅的记笔记\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.4优雅的记笔记\"},{\"text\":\"2.5以理工科的方式阅读英语\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.5以理工科的方式阅读英语\"},{\"text\":\"2.6学会使用AI辅助学习\",\"link\":\"/技术资源汇总(杭电支持版)/2.高效学习/2.6学会使用AI辅助学习\"}]}],\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/\":[{\"text\":\"返回上一层\",\"link\":\"/技术资源汇总(杭电支持版)/内容索引\"},{\"text\":\"3.编程思维体系构建\",\"collapsed\":false,\"items\":[{\"text\":\"3.编程思维体系构建\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.编程思维体系构建\"},{\"text\":\"3.0 编程入门之道\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.0 编程入门之道\"},{\"text\":\"3.1该使用哪个编辑器？？？\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.1该使用哪个编辑器？？？\"},{\"text\":\"3.2算法杂谈\",\"collapsed\":true,\"items\":[{\"text\":\"3.2算法杂谈\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.2算法杂谈\"},{\"text\":\"3.2.1手把手教你学算法——如何使用OJ（Online Judge）\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.2.1手把手教你学算法——如何使用OJ（Online Judge）\"},{\"text\":\"3.2.2ACM 竞赛从入门到入坟\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.2.2ACM 竞赛从入门到入坟\"}]},{\"text\":\"3.3如何选择编程语言\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.3如何选择编程语言\"},{\"text\":\"3.4C语言\",\"collapsed\":true,\"items\":[{\"text\":\"3.4C语言\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4C语言\"},{\"text\":\"3.4.1FAQ：常见问题\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.1FAQ：常见问题\"},{\"text\":\"3.4.2用什么写 C 语言\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.2用什么写 C 语言\"},{\"text\":\"3.4.3解决编程问题的普适性过程\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.3解决编程问题的普适性过程\"},{\"text\":\"3.4.4C语言前置概念学习\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.4C语言前置概念学习\"},{\"text\":\"3.4.5阶段一：编程属性\",\"collapsed\":true,\"items\":[{\"text\":\"3.4.5阶段一：编程属性\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.5阶段一：编程属性\"},{\"text\":\"3.4.5.1C语言自测标准——链表\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.5.1C语言自测标准——链表\"}]},{\"text\":\"3.4.6阶段二：文字冒险（cool）\",\"collapsed\":true,\"items\":[{\"text\":\"3.4.6阶段二：文字冒险（cool）\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6阶段二：文字冒险（cool）\"},{\"text\":\"3.4.6.1.开始冒险\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.1.开始冒险\"},{\"text\":\"3.4.6.2.探索未知\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.2.探索未知\"},{\"text\":\"3.4.6.3.指明地点\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.3.指明地点\"},{\"text\":\"3.4.6.4.创建对象\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.4.创建对象\"},{\"text\":\"3.4.6.5.捡起物品\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.5.捡起物品\"},{\"text\":\"3.4.6.6.绘制地图\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.6.绘制地图\"},{\"text\":\"3.4.6.7.增大距离\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.7.增大距离\"},{\"text\":\"3.4.6.8.移动方向\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.8.移动方向\"},{\"text\":\"3.4.6.9.练习：生成代码\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.9.练习：生成代码\"},{\"text\":\"3.4.6.10.增添属性\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.10.增添属性\"},{\"text\":\"3.4.6.11.设置条件\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.11.设置条件\"},{\"text\":\"3.4.6.12.开启关闭\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.12.开启关闭\"},{\"text\":\"3.4.6.13.编写解析器\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.13.编写解析器\"},{\"text\":\"3.4.6.14.丰富命令\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.14.丰富命令\"},{\"text\":\"3.4.6.15.赋予明暗\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.15.赋予明暗\"},{\"text\":\"3.4.6.16.结语：你终将自由\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.6.16.结语：你终将自由\"}]},{\"text\":\"3.4.7C基础知识杂谈\",\"collapsed\":true,\"items\":[{\"text\":\"3.4.7C基础知识杂谈\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.7C基础知识杂谈\"},{\"text\":\"3.4.7.1GDB初探索（编程可阅览）\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.7.1GDB初探索（编程可阅览）\"},{\"text\":\"3.4.7.1.1调试理论\",\"link\":\"/技术资源汇总(杭电支持版)/3.编程思维体系构建/3.4.7.1.1调试理论\"},{\"text\":\"3.4.7.2C的历史问题：undefined 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C\"},{\"text\":\"5.3还玩裸机？上操作系统！\",\"link\":\"/技术资源汇总(杭电支持版)/5.富有生命的嵌入式/5.3还玩裸机？上操作系统！\"}]}],\"/技术资源汇总(杭电支持版)/6.计算机安全/\":[{\"text\":\"返回上一层\",\"link\":\"/技术资源汇总(杭电支持版)/内容索引\"},{\"text\":\"6.计算机安全\",\"collapsed\":false,\"items\":[{\"text\":\"6.计算机安全\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.计算机安全\"},{\"text\":\"6.1Web安全\",\"collapsed\":true,\"items\":[{\"text\":\"6.1Web安全\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.1Web安全\"},{\"text\":\"6.1.1SQL 注入\",\"link\":\"/技术资源汇总(杭电支持版)/6.计算机安全/6.1.1SQL 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