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<a href="/2025/02/04/regrex%E8%A1%A5%E5%85%85/" target="_self">
<img src="/img/Hibike!Euphonium.jpg" srcset="/img/loading.gif" lazyload alt="regrex补充">
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</div>
<article class="col-12 col-md-8 mx-auto index-info">
<h2 class="index-header">
<a href="/2025/02/04/regrex%E8%A1%A5%E5%85%85/" target="_self">
regrex补充
</a>
</h2>
<a class="index-excerpt " href="/2025/02/04/regrex%E8%A1%A5%E5%85%85/" target="_self">
<div>
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。 1. 零宽断言 正向零宽断言（Positive Lookahead） 匹配某个位置后面紧跟着特定内容，但不会把这个内容包括在结果中。 语法： 1(?=pattern) 示例： 提取所有后面跟着数字的单词： 1
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2025-02-04 13:54" pubdate>
2025-02-04
</time>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/regrex/">#regrex</a>
</div>
</div>
</article>
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<a href="/2025/02/04/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E7%BB%83%E4%B9%A0/" target="_self">
<img src="/img/Hibike!Euphonium.jpg" srcset="/img/loading.gif" lazyload alt="正则表达式练习">
</a>
</div>
<article class="col-12 col-md-8 mx-auto index-info">
<h2 class="index-header">
<a href="/2025/02/04/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E7%BB%83%E4%B9%A0/" target="_self">
正则表达式练习
</a>
</h2>
<a class="index-excerpt " href="/2025/02/04/%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F%E7%BB%83%E4%B9%A0/" target="_self">
<div>
以下是一些精心设计的正则表达式练习，结合了 Python 编程 和 文件操作，帮助你熟悉正则表达式在不同场景中的实际应用。 练习一：基本字符匹配 目标：掌握正则表达式的基础功能。 任务： 提取字符串中的所有电话号码（格式如：123-456-7890 或 1234567890）。 提取所有以 "test" 开头的单词。 代码模板： 1234567891011121314151617impor
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2025-02-04 13:53" pubdate>
2025-02-04
</time>
</div>
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<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/regrex/" class="category-chain-item">regrex</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/regrex/">#regrex</a>
</div>
</div>
</article>
</div>
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<div class="col-12 col-md-4 m-auto index-img">
<a href="/2025/02/04/%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/" target="_self">
<img src="/img/Hibike!Euphonium.jpg" srcset="/img/loading.gif" lazyload alt="正则表达式30分钟入门">
</a>
</div>
<article class="col-12 col-md-8 mx-auto index-info">
<h2 class="index-header">
<a href="/2025/02/04/%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/" target="_self">
正则表达式30分钟入门
</a>
</h2>
<a class="index-excerpt " href="/2025/02/04/%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/" target="_self">
<div>
版本：v2.4.1 (2019-11-15) 作者：deerchao 转载请注明来源 目录 本文目标 如何使用本教程 正则表达式到底是什么东西？ 入门 测试正则表达式 元字符 字符转义 重复 字符类 分枝条件 反义 分组 后向引用 零宽断言 负向零宽断言 注释 贪婪与懒惰 处理选项 平衡组/递归匹配 还有些什么东西没提到 联系作者 网上的资源及本文参考文献 更新纪录 本文目标 30分钟内让你明
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2025-02-04 13:52" pubdate>
2025-02-04
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/regrex/" class="category-chain-item">regrex</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/regrex/">#regrex</a>
</div>
</div>
</article>
</div>
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python使用pip之setup.py编写
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1. 基础结构 setup.py 是 Python 打包的核心配置文件，需使用 setuptools 库定义包的元数据和构建规则。 基本模板 1234567891011121314151617from setuptools import setup, find_packagessetup( name="your-package-name", # 包名（PyPI唯一标识
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3. Add a provider that offers secure DNS This is where it can get a bit tricky. You need to have the address of a provider that offers Private DNS. Here's my provider of choice: 11dot1dot1dot1.cloudf
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You can find my dotfiles here. Open a terminal window Open a terminal window on your macOs or linux machine. I’m using Alacritty on macOs and I’m using the zsh shell. Install Homebrew Run the followin
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图形化相关科普
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Wayland、Xorg、GNOME、KDE 这些术语在 Linux 图形系统和桌面环境中扮演着不同的角色。它们分别负责不同的功能，彼此之间相互协作，提供完整的图形用户体验。下面我将解释它们的关系以及各自的定义： [!NOTE] 省流: 1. 用户与桌面环境(KDE,GNOME)交互 2. 桌面环境和显示服务器协议(wayland,xrog)交互 3. 显示服务器和内核交互 4. 内核与硬件交互
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Linux文件FILE
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文件描述符 文件在 Linux 系统中通过文件描述符与内核进行交互。打开文件时，Linux 内核会执行以下步骤： 系统调用：当用户程序调用 open() 打开文件时，它会触发一个系统调用，通过内核与硬件进行交互。 文件系统操作：内核会查找文件路径对应的 inode 结构，inode 存储文件的元数据（如文件大小、权限、数据块位置等）。 缓存与内存映射：内核会将文件数据从磁盘加载到内存中的缓存（p
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Linux文件描述符(fd)
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作者: 杰克小麻雀 原文链接: https://blog.csdn.net/yushuaigee/article/details/107883964 1、从一个最常见的例子说起 在使用Linux的过程中， 我们平时经常看到下面这样的用法： 1 echo log > /dev/null 2>&1 > ：表示将输出结果重定向到哪里，例如：echo “12
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需求 最近我们在开发一个基于树莓派的小盒子，我们会采购一些树莓派，装好外盒，装好arm版本的【Ubuntu Server 20.04】系统，并且装上我们开发的配套软件，对接我们云端的服务，最终把小盒子卖给用户并提供一些收费的服务。我们在安装系统的时候使用了Ubuntu自带的磁盘加密功能，确保机器在不开机的情况下不能被轻易的取出TF卡读取数据。 另一方面，我们创建了一个低权限的Linux用户【us
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