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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="zh_CN">
<head>
<meta charset="utf-8" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" />
<title>html --- 超文本标记语言支持 &#8212; Python 3.8.20 文档</title><meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
<script src="../_static/jquery.js"></script>
<script src="../_static/underscore.js"></script>
<script src="../_static/doctools.js"></script>
<script src="../_static/language_data.js"></script>
<script src="../_static/translations.js"></script>
<script src="../_static/sidebar.js"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="在 Python 3.8.20 文档 中搜索"
href="../_static/opensearch.xml"/>
<link rel="author" title="关于这些文档" href="../about.html" />
<link rel="index" title="索引" href="../genindex.html" />
<link rel="search" title="搜索" href="../search.html" />
<link rel="copyright" title="版权所有" href="../copyright.html" />
<link rel="next" title="html.parser --- 简单的 HTML 和 XHTML 解析器" href="html.parser.html" />
<link rel="prev" title="结构化标记处理工具" href="markup.html" />
<link rel="canonical" href="https://docs.python.org/3/library/html.html" />
<style>
@media only screen {
table.full-width-table {
width: 100%;
}
}
</style>
<link rel="shortcut icon" type="image/png" href="../_static/py.svg" />
<script type="text/javascript" src="../_static/copybutton.js"></script>
<script type="text/javascript" src="../_static/menu.js"></script>
</head>
<body>
<div class="mobile-nav">
<input type="checkbox" id="menuToggler" class="toggler__input" aria-controls="navigation"
aria-pressed="false" aria-expanded="false" role="button" aria-label="Menu" />
<label for="menuToggler" class="toggler__label">
<span></span>
</label>
<nav class="nav-content" role="navigation">
<a href="https://www.python.org/" class="nav-logo">
<img src="../_static/py.svg" alt="Logo"/>
</a>
<div class="version_switcher_placeholder"></div>
<form role="search" class="search" action="../search.html" method="get">
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" class="search-icon">
<path fill-rule="nonzero"
d="M15.5 14h-.79l-.28-.27a6.5 6.5 0 001.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 00-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 005.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z" fill="#444"></path>
</svg>
<input type="text" name="q" aria-label="快速搜索"/>
<input type="submit" value="转向"/>
</form>
</nav>
<div class="menu-wrapper">
<nav class="menu" role="navigation" aria-label="main navigation">
<div class="language_switcher_placeholder"></div>
<h4>上一个主题</h4>
<p class="topless"><a href="markup.html"
title="上一章">结构化标记处理工具</a></p>
<h4>下一个主题</h4>
<p class="topless"><a href="html.parser.html"
title="下一章"><code class="xref py py-mod docutils literal notranslate"><span class="pre">html.parser</span></code> --- 简单的 HTML 和 XHTML 解析器</a></p>
<div role="note" aria-label="source link">
<h3>本页</h3>
<ul class="this-page-menu">
<li><a href="../bugs.html">报告 Bug</a></li>
<li>
<a href="https://github.com/python/cpython/blob/3.8/Doc/library/html.rst"
rel="nofollow">显示源代码
</a>
</li>
</ul>
</div>
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</div>
<div id="outdated-warning" style="padding: .5em; text-align: center; background-color: #FFBABA; color: #6A0E0E;">
这个文档所针对的是一个已不再受支持的 Python 旧版本。
你应当升级版本，并阅读
<a href="/3/library/html.html"> Python 当前稳定版本的文档</a>.
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>导航</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="总目录"
accesskey="I">索引</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python 模块索引"
>模块</a> |</li>
<li class="right" >
<a href="html.parser.html" title="html.parser --- 简单的 HTML 和 XHTML 解析器"
accesskey="N">下一页</a> |</li>
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<a href="markup.html" title="结构化标记处理工具"
accesskey="P">上一页</a> |</li>
<li><img src="../_static/py.svg" alt="python logo" style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="https://www.python.org/">Python</a> &#187;</li>
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<div class="version_switcher_placeholder"></div>
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<li class="nav-item nav-item-2"><a href="markup.html" accesskey="U">结构化标记处理工具</a> &#187;</li>
<li class="right">
<div class="inline-search" role="search">
<form class="inline-search" action="../search.html" method="get">
<input placeholder="快速搜索" aria-label="快速搜索" type="text" name="q" />
<input type="submit" value="转向" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
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</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<section id="module-html">
<span id="html-hypertext-markup-language-support"></span><h1><a class="reference internal" href="#module-html" title="html: Helpers for manipulating HTML."><code class="xref py py-mod docutils literal notranslate"><span class="pre">html</span></code></a> --- 超文本标记语言支持<a class="headerlink" href="#module-html" title="永久链接至标题"></a></h1>
<p><strong>源码：</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.8/Lib/html/__init__.py">Lib/html/__init__.py</a></p>
<hr class="docutils" />
<p>该模块定义了操作HTML的工具。</p>
<dl class="function">
<dt id="html.escape">
<code class="sig-prename descclassname">html.</code><code class="sig-name descname">escape</code><span class="sig-paren">(</span><em class="sig-param">s</em>, <em class="sig-param">quote=True</em><span class="sig-paren">)</span><a class="headerlink" href="#html.escape" title="永久链接至目标"></a></dt>
<dd><p>将字符串 <em>s</em> 中的字符``&amp;`` 、 <code class="docutils literal notranslate"><span class="pre">&lt;</span></code> 和 <code class="docutils literal notranslate"><span class="pre">&gt;</span></code> 转换为安全的HTML序列。 如果需要在 HTML 中显示可能包含此类字符的文本，请使用此选项。 如果可选的标志 <em>quote</em> 为真值，则字符 (<code class="docutils literal notranslate"><span class="pre">&quot;</span></code>) 和 (<code class="docutils literal notranslate"><span class="pre">'</span></code>) 也被转换；这有助于包含在由引号分隔的 HTML 属性中，如 <code class="docutils literal notranslate"><span class="pre">&lt;a</span> <span class="pre">href=&quot;...&quot;&gt;</span></code>。</p>
<div class="versionadded">
<p><span class="versionmodified added">3.2 新版功能.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="html.unescape">
<code class="sig-prename descclassname">html.</code><code class="sig-name descname">unescape</code><span class="sig-paren">(</span><em class="sig-param">s</em><span class="sig-paren">)</span><a class="headerlink" href="#html.unescape" title="永久链接至目标"></a></dt>
<dd><p>将字符串 <em>s</em> 中的所有命名和数字字符引用 (例如 <code class="docutils literal notranslate"><span class="pre">&amp;gt;</span></code>, <code class="docutils literal notranslate"><span class="pre">&amp;#62;</span></code>, <code class="docutils literal notranslate"><span class="pre">&amp;#x3e;</span></code>) 转换为相应的Unicode字符。 此函数使用HTML 5标准为有效和无效字符引用定义的规则，以及 <a class="reference internal" href="html.entities.html#html.entities.html5" title="html.entities.html5"><code class="xref py py-data docutils literal notranslate"><span class="pre">HTML</span> <span class="pre">5</span> <span class="pre">命名字符引用列表</span></code></a>。</p>
<div class="versionadded">
<p><span class="versionmodified added">3.4 新版功能.</span></p>
</div>
</dd></dl>
<hr class="docutils" />
<p><code class="docutils literal notranslate"><span class="pre">html</span></code> 包中的子模块是：</p>
<ul class="simple">
<li><p><a class="reference internal" href="html.parser.html#module-html.parser" title="html.parser: A simple parser that can handle HTML and XHTML."><code class="xref py py-mod docutils literal notranslate"><span class="pre">html.parser</span></code></a> —— 具有宽松解析模式的HTML / XHTML解析器</p></li>
<li><p><a class="reference internal" href="html.entities.html#module-html.entities" title="html.entities: Definitions of HTML general entities."><code class="xref py py-mod docutils literal notranslate"><span class="pre">html.entities</span></code></a> -- HTML 实体定义</p></li>
</ul>
</section>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<h4>上一个主题</h4>
<p class="topless"><a href="markup.html"
title="上一章">结构化标记处理工具</a></p>
<h4>下一个主题</h4>
<p class="topless"><a href="html.parser.html"
title="下一章"><code class="xref py py-mod docutils literal notranslate"><span class="pre">html.parser</span></code> --- 简单的 HTML 和 XHTML 解析器</a></p>
<div role="note" aria-label="source link">
<h3>本页</h3>
<ul class="this-page-menu">
<li><a href="../bugs.html">报告 Bug</a></li>
<li>
<a href="https://github.com/python/cpython/blob/3.8/Doc/library/html.rst"
rel="nofollow">显示源代码
</a>
</li>
</ul>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>导航</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="总目录"
>索引</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python 模块索引"
>模块</a> |</li>
<li class="right" >
<a href="html.parser.html" title="html.parser --- 简单的 HTML 和 XHTML 解析器"
>下一页</a> |</li>
<li class="right" >
<a href="markup.html" title="结构化标记处理工具"
>上一页</a> |</li>
<li><img src="../_static/py.svg" alt="python logo" style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="https://www.python.org/">Python</a> &#187;</li>
<li class="switchers">
<div class="language_switcher_placeholder"></div>
<div class="version_switcher_placeholder"></div>
</li>
<li>
</li>
<li id="cpython-language-and-version">
<a href="../index.html">3.8.20 Documentation</a> &#187;
</li>
<li class="nav-item nav-item-1"><a href="index.html" >Python 标准库</a> &#187;</li>
<li class="nav-item nav-item-2"><a href="markup.html" >结构化标记处理工具</a> &#187;</li>
<li class="right">
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<input placeholder="快速搜索" aria-label="快速搜索" type="text" name="q" />
<input type="submit" value="转向" />
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&copy; <a href="../copyright.html">版权所有</a> 2001-2024, Python Software Foundation.
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This page is licensed under the Python Software Foundation License Version 2.
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最后更新于 12月 09, 2024.
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