https://blue-sky.tech/tags/%E6%95%B0%E7%BB%84%E6%8C%87%E9%92%88/Recent content in 数组指针 on Blue_Sky蓝天计划Hugo -- gohugo.iozh-cn3465179943@qq.com (Li)3465179943@qq.com (Li)© 2025 嵌入式开发者博客. 保留所有权利.https://blue-sky.tech/notes/c-cpp/c/c%E8%AF%AD%E8%A8%80%E7%A8%8B%E5%BA%8F%E8%AE%BE%E8%AE%A1/p8-%E6%8C%87%E9%92%88/Mon, 01 Jan 0001 00:00:00 +00003465179943@qq.com (Li)https://blue-sky.tech/notes/c-cpp/c/c%E8%AF%AD%E8%A8%80%E7%A8%8B%E5%BA%8F%E8%AE%BE%E8%AE%A1/p8-%E6%8C%87%E9%92%88/<h1 class="relative group">知识点 <div id="知识点" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e7%9f%a5%e8%af%86%e7%82%b9" aria-label="锚点">#</a> </span> </h1> <h2 class="relative group">9.1 指针的基本概念详解 <div id="91-指针的基本概念详解" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#91-%e6%8c%87%e9%92%88%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e8%af%a6%e8%a7%a3" aria-label="锚点">#</a> </span> </h2> <ul> <li>@ 指针基本概念图 <ul> <li>![[白板/P23 指针基本概念.canvas|P23 指针基本概念]]</li> </ul> </li> </ul> <h3 class="relative group">9.1.1 前提知识 <div id="911-前提知识" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#911-%e5%89%8d%e6%8f%90%e7%9f%a5%e8%af%86" aria-label="锚点">#</a> </span> </h3> <ul> <li>变量存储在内存中，不同类型的变量保存在不同存储区（静态存储区、动态存储区）</li> <li>变量的内存在编译时或程序执行时分配</li> <li>各类型占用字节数（x86 平台）:</li> </ul> <table> <thead> <tr> <th>类型</th> <th>字节数</th> </tr> </thead> <tbody> <tr> <td><code>int</code></td> <td>4</td> </tr> <tr> <td><code>char</code></td> <td>1</td> </tr> <tr> <td><code>float</code></td> <td>4</td> </tr> <tr> <td><code>double</code></td> <td>8</td> </tr> </tbody> </table> <h3 class="relative group">9.1.2 地址的概念 <div id="912-地址的概念" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#912-%e5%9c%b0%e5%9d%80%e7%9a%84%e6%a6%82%e5%bf%b5" aria-label="锚点">#</a> </span> </h3> <blockquote> <p>[!tip] 地址</p>