https://myblog.050626.xyz/notes/regex/Recent content in 正则表达式 on ICE345のBLOGHugo -- gohugo.iozh-cn© 2026 ICE345Tue, 04 Feb 2025 13:54:11 +0000https://myblog.050626.xyz/notes/regex/regrex%E8%A1%A5%E5%85%85/Tue, 04 Feb 2025 13:54:11 +0000https://myblog.050626.xyz/notes/regex/regrex%E8%A1%A5%E5%85%85/<p>零宽断言（lookahead 和 lookbehind）、负向断言、后向引用以及平衡组是正则表达式中的高级特性，能够处理更复杂的匹配需求。以下是它们的功能和在 Python 中的具体应用。</p>https://myblog.050626.xyz/notes/regex/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E7%BB%83%E4%B9%A0/Tue, 04 Feb 2025 13:53:04 +0000https://myblog.050626.xyz/notes/regex/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E7%BB%83%E4%B9%A0/<p>以下是一些精心设计的正则表达式练习，结合了 <strong>Python 编程</strong> 和 <strong>文件操作</strong>，帮助你熟悉正则表达式在不同场景中的实际应用。</p> <hr> <h2 class="relative group"><strong>练习一：基本字符匹配</strong> <div id="练习一基本字符匹配" 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%bb%83%e4%b9%a0%e4%b8%80%e5%9f%ba%e6%9c%ac%e5%ad%97%e7%ac%a6%e5%8c%b9%e9%85%8d" aria-label="锚点">#</a> </span> </h2> <p><strong>目标</strong>：掌握正则表达式的基础功能。</p>https://myblog.050626.xyz/notes/regex/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F30%E5%88%86%E9%92%9F%E5%85%A5%E9%97%A8/Tue, 04 Feb 2025 13:52:01 +0000https://myblog.050626.xyz/notes/regex/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F30%E5%88%86%E9%92%9F%E5%85%A5%E9%97%A8/<p>版本：v2.4.1 (2019-11-15) 作者：<a href="https://deerchao.cn/" target="_blank" rel="noreferrer">deerchao</a> 转载请注明<a href="https://deerchao.cn/tutorials/regex/regex.htm" target="_blank" rel="noreferrer">来源</a></p> <h2 class="relative group">目录 <div id="目录" 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%9b%ae%e5%bd%95" aria-label="锚点">#</a> </span> </h2> <ol> <li><a href="https://deerchao.cn/tutorials/regex/#mission" target="_blank" rel="noreferrer">本文目标</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#howtouse" target="_blank" rel="noreferrer">如何使用本教程</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#introduction" target="_blank" rel="noreferrer">正则表达式到底是什么东西？</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#getstarted" target="_blank" rel="noreferrer">入门</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#testing" target="_blank" rel="noreferrer">测试正则表达式</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#metacode" target="_blank" rel="noreferrer">元字符</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#escape" target="_blank" rel="noreferrer">字符转义</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#repeat" target="_blank" rel="noreferrer">重复</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#charclass" target="_blank" rel="noreferrer">字符类</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#alternative" target="_blank" rel="noreferrer">分枝条件</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#negation" target="_blank" rel="noreferrer">反义</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#grouping" target="_blank" rel="noreferrer">分组</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#backreference" target="_blank" rel="noreferrer">后向引用</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#lookaround" target="_blank" rel="noreferrer">零宽断言</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#negativelookaround" target="_blank" rel="noreferrer">负向零宽断言</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#commenting" target="_blank" rel="noreferrer">注释</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#greedyandlazy" target="_blank" rel="noreferrer">贪婪与懒惰</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#regexoptions" target="_blank" rel="noreferrer">处理选项</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#balancedgroup" target="_blank" rel="noreferrer">平衡组/递归匹配</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#more" target="_blank" rel="noreferrer">还有些什么东西没提到</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#contact" target="_blank" rel="noreferrer">联系作者</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#resources" target="_blank" rel="noreferrer">网上的资源及本文参考文献</a></li> <li><a href="https://deerchao.cn/tutorials/regex/#updatelog" target="_blank" rel="noreferrer">更新纪录</a></li> </ol> <h2 class="relative group">本文目标 <div id="本文目标" 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="#%e6%9c%ac%e6%96%87%e7%9b%ae%e6%a0%87" aria-label="锚点">#</a> </span> </h2> <p>30分钟内让你明白正则表达式是什么，并对它有一些基本的了解，让你可以在自己的程序或网页里使用它。</p>