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<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="renderer" content="webkit"><meta http-equiv="X-UA-Compatible" content="IE=edge"><link rel="dns-prefetch" href="https://proudrabbit.gitee.io"><title>递归 | 兔子的个人博客 - Hexo Blog</title><meta name="generator" content="hexo-theme-yilia-plus"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1"><meta name="description" content="1. 什么是递归简单来说就是，当函数自己调用自己本身时，就会发生递归现象。举例如下：1234567891011121314151617def sum_number(n): ''' 使用递归来实现 1+2+3……+n :param n: :return: 求和的结果 ''' if n==1: return 1 temp = sum_number"><meta property="og:type" content="article"><meta property="og:title" content="递归"><meta property="og:url" content="https://proudrabbit.gitee.io/%E9%80%92%E5%BD%92.html"><meta property="og:site_name" content="兔子的个人博客 - Hexo Blog"><meta property="og:description" content="1. 什么是递归简单来说就是，当函数自己调用自己本身时，就会发生递归现象。举例如下：1234567891011121314151617def sum_number(n): ''' 使用递归来实现 1+2+3……+n :param n: :return: 求和的结果 ''' if n==1: return 1 temp = sum_number"><meta property="og:locale" content="zh_CN"><meta property="og:image" content="https://i.loli.net/2020/07/14/8YKvtmljHLhk4c7.png"><meta property="og:image" content="https://i.loli.net/2020/07/14/uUfl1YB4adniTPE.png"><meta property="article:published_time" content="2020-07-14T13:06:56.000Z"><meta property="article:modified_time" content="2021-08-25T14:11:38.208Z"><meta property="article:author" content="路痴的兔子"><meta property="article:tag" content="随笔"><meta property="article:tag" content="递归"><meta property="article:tag" content="编程语言"><meta name="twitter:card" content="summary"><meta name="twitter:image" content="https://i.loli.net/2020/07/14/8YKvtmljHLhk4c7.png"><link rel="alternative" href="/atom.xml" title="兔子的个人博客 - Hexo Blog" type="application/atom+xml"><link rel="icon" href="/img/favicon.ico"><link rel="apple-touch-icon" href="/apple-touch-icon-180x180.png"><link rel="stylesheet" type="text/css" href="/./main.b8fa34.css"><style type="text/css">#container.show{background:linear-gradient(200deg,#a0cfe4,#e8c37e)}</style><script src="/lib/clickLove.js"></script><script>!function(){var t=document.createElement("script"),e=window.location.protocol.split(":")[0];t.src="https"===e?"https://zz.bdstatic.com/linksubmit/push.js":"http://push.zhanzhang.baidu.com/push.js";var s=document.getElementsByTagName("script")[0];s.parentNode.insertBefore(t,s)}()</script><script src="/lib/pace.min.js"></script><link href="//cdn.bootcss.com/pace/1.0.2/themes/silver/pace-theme-corner-indicator.css" rel="stylesheet"><meta name="google-site-verification" content="AJuUAh5QvaKZUGnT5rGD-WA_VxSxRy1s-eQgGDhiHrY"><meta name="msvalidate.01" content="69AE9CE05F5D0FD01E37DE9CF11E1E6B"><meta name="360-site-verification" content="d52524f63d68a2e4be5584bc63a0dd44"><link rel="stylesheet" href="\assets\css\APlayer.min.css" class="aplayer-style-marker">
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</span></span><span class="post-time"> | <span class="post-meta-item-icon"><i class="icon-book icon"></i> <span class="post-meta-item-text">阅读时长≈</span> <span class="post-count">1分</span></span></span></div></header><div class="article-entry" itemprop="articleBody"><h1 id="1-什么是递归"><a href="#1-什么是递归" class="headerlink" title="1. 什么是递归"></a>1. 什么是递归</h1><p>简单来说就是，当函数自己调用自己本身时，就会发生递归现象。</p><p>举例如下：</p><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">sum_number</span><span class="params">(n)</span>:</span></span><br><span class="line"> <span class="string">'''</span></span><br><span class="line"><span class="string"> 使用递归来实现 1+2+3……+n</span></span><br><span class="line"><span class="string"> :param n:</span></span><br><span class="line"><span class="string"> :return: 求和的结果</span></span><br><span class="line"><span class="string"> '''</span></span><br><span class="line"> <span class="keyword">if</span> n==<span class="number">1</span>:</span><br><span class="line"> <span class="keyword">return</span> <span class="number">1</span></span><br><span class="line"> temp = sum_number(n<span class="number">-1</span>)</span><br><span class="line"> <span class="keyword">return</span> n+temp</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">main</span><span class="params">()</span>:</span></span><br><span class="line"> num = int(input(<span class="string">"请输入你要计算的数字："</span>))</span><br><span class="line"> print(sum_number(num))</span><br><span class="line"></span><br><span class="line"><span class="keyword">if</span> __name__==<span class="string">"__main__"</span>:</span><br><span class="line"> main()</span><br></pre></td></tr></table></figure><a id="more"></a><p>运行结果如下：</p><p><img src="https://i.loli.net/2020/07/14/8YKvtmljHLhk4c7.png" alt="程序运行结果" title="结果图"></p><h1 id="2-递归流程分析"><a href="#2-递归流程分析" class="headerlink" title="2. 递归流程分析"></a>2. 递归流程分析</h1><p><img src="https://i.loli.net/2020/07/14/uUfl1YB4adniTPE.png" alt="递归流程" title="递归流程"></p><p><strong>注意事项：在使用递归时，一定要给递归一个出口，不然程序会进入死循环。</strong></p><div class="declare"><ul class="post-copyright"><li><strong>本文作者：</strong> 路痴的兔子</li><li><strong>本文链接：</strong> <a href="https:/proudrabbit.gitee.io/递归.html" title="递归" 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jsonContent:
meta: false
pages: false
posts:
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text: false
raw: false
content: false
slug: false
updated: false
comments: false
link: false
permalink: false
excerpt: false
categories: false
tags: true
</pre></p><li class="search-li" q-repeat="items" q-show="isShow"><a q-attr="href:path|urlformat" class="search-title"><i class="icon-quo-left icon"></i><span q-text="title"></span></a><p class="search-time"><i class="icon-calendar icon"></i> <span q-text="date|dateformat"></span></p><p class="search-tag"><i class="icon-price-tags icon"></i> <span q-repeat="tags" q-on="click:choseTag(e, name)" q-text="name|tagformat"></span></p></li></ul></section><section class="tools-section tools-section-friends" q-show="friends"><ul class="search-ul"><li class="search-li"><a href="https://blog.csdn.net/qq_37000789" target="_blank" class="search-title" title="个人博客"><i class="icon-link icon"></i> 正月点灯笼的博客</a></li><li class="search-li"><a href="https://blog.csdn.net/ld1461575230?spm=1001.2101.3001.5343&type=blog" target="_blank" class="search-title" title="个人博客"><i class="icon-link icon"></i> 哈哈哈的嘎嘎嘎的博客</a></li><li class="search-li"><a href="https://gujiakai.gitee.io/" target="_blank" class="search-title" title="个人博客"><i class="icon-link icon"></i> 摸鱼的小灰栗的博客</a></li></ul></section><section class="tools-section tools-section-me" q-show="aboutme"><div class="aboutme-wrap" id="aboutme">熟悉的技术：<br>C/C++、Python、嵌入式、ROS。<br>开源爱好者、Linux爱好者。<br>欢迎访问我的博客。hi✿(。◕ᴗ◕。)✿</div></section></div></div><div class="pswp" tabindex="-1" role="dialog" aria-hidden="true"><div class="pswp__bg"></div><div class="pswp__scroll-wrap"><div class="pswp__container"><div class="pswp__item"></div><div class="pswp__item"></div><div class="pswp__item"></div></div><div class="pswp__ui pswp__ui--hidden"><div class="pswp__top-bar"><div class="pswp__counter"></div><button class="pswp__button pswp__button--close" title="Close (Esc)"></button> <button class="pswp__button pswp__button--share" style="display:none" title="Share"></button> <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button> <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button><div class="pswp__preloader"><div class="pswp__preloader__icn"><div class="pswp__preloader__cut"><div class="pswp__preloader__donut"></div></div></div></div></div><div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap"><div class="pswp__share-tooltip"></div></div><button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)"></button> <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)"></button><div class="pswp__caption"><div class="pswp__caption__center"></div></div></div></div></div></div><script type="text/javascript" src="/plugins/TweenMax/TweenMax.min.js"></script><script type="text/javascript" src="/plugins/TweenMax/HoverImg.js"></script><script>var hoverEffect = {
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