356 lines
19 KiB
HTML
356 lines
19 KiB
HTML
|
||
<!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>字节数组对象 — 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="Unicode对象和编解码器" href="unicode.html" />
|
||
<link rel="prev" title="bytes 对象" href="bytes.html" />
|
||
<link rel="canonical" href="https://docs.python.org/3/c-api/bytearray.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>
|
||
<h3><a href="../contents.html">目录</a></h3>
|
||
<ul>
|
||
<li><a class="reference internal" href="#">字节数组对象</a><ul>
|
||
<li><a class="reference internal" href="#type-check-macros">类型检查宏</a></li>
|
||
<li><a class="reference internal" href="#direct-api-functions">直接 API 函数</a></li>
|
||
<li><a class="reference internal" href="#macros">宏</a></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
|
||
<h4>上一个主题</h4>
|
||
<p class="topless"><a href="bytes.html"
|
||
title="上一章">bytes 对象</a></p>
|
||
<h4>下一个主题</h4>
|
||
<p class="topless"><a href="unicode.html"
|
||
title="下一章">Unicode对象和编解码器</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/c-api/bytearray.rst"
|
||
rel="nofollow">显示源代码
|
||
</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</nav>
|
||
</div>
|
||
</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/c-api/bytearray.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="unicode.html" title="Unicode对象和编解码器"
|
||
accesskey="N">下一页</a> |</li>
|
||
<li class="right" >
|
||
<a href="bytes.html" title="bytes 对象"
|
||
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> »</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> »
|
||
</li>
|
||
|
||
<li class="nav-item nav-item-1"><a href="index.html" >Python/C API 参考手册</a> »</li>
|
||
<li class="nav-item nav-item-2"><a href="concrete.html" accesskey="U">具体的对象层</a> »</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>
|
||
|
|
||
</li>
|
||
|
||
</ul>
|
||
</div>
|
||
|
||
<div class="document">
|
||
<div class="documentwrapper">
|
||
<div class="bodywrapper">
|
||
<div class="body" role="main">
|
||
|
||
<section id="byte-array-objects">
|
||
<span id="bytearrayobjects"></span><h1>字节数组对象<a class="headerlink" href="#byte-array-objects" title="永久链接至标题">¶</a></h1>
|
||
<span class="target" id="index-0"></span><dl class="type">
|
||
<dt id="c.PyByteArrayObject">
|
||
<code class="sig-name descname">PyByteArrayObject</code><a class="headerlink" href="#c.PyByteArrayObject" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>这个 <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyObject</span></code></a> 的子类型表示一个 Python 字节数组对象。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="var">
|
||
<dt id="c.PyByteArray_Type">
|
||
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="sig-name descname">PyByteArray_Type</code><a class="headerlink" href="#c.PyByteArray_Type" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>Python bytearray 类型表示为 <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyTypeObject</span></code></a> 的实例；这与Python层面的 <a class="reference internal" href="../library/stdtypes.html#bytearray" title="bytearray"><code class="xref py py-class docutils literal notranslate"><span class="pre">bytearray</span></code></a> 是相同的对象。</p>
|
||
</dd></dl>
|
||
|
||
<section id="type-check-macros">
|
||
<h2>类型检查宏<a class="headerlink" href="#type-check-macros" title="永久链接至标题">¶</a></h2>
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_Check">
|
||
int <code class="sig-name descname">PyByteArray_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Check" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>当对象 <em>o</em> 是一个字节数组对象而且是一个字节数组类型的子类型实例时，返回真。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_CheckExact">
|
||
int <code class="sig-name descname">PyByteArray_CheckExact</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_CheckExact" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>当对象 <em>o</em> 是一个字节数组对象，但不是一个字节数组类型的子类型实例时，返回真。</p>
|
||
</dd></dl>
|
||
|
||
</section>
|
||
<section id="direct-api-functions">
|
||
<h2>直接 API 函数<a class="headerlink" href="#direct-api-functions" title="永久链接至标题">¶</a></h2>
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_FromObject">
|
||
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">PyByteArray_FromObject</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_FromObject" title="永久链接至目标">¶</a></dt>
|
||
<dd><em class="refcount">Return value: New reference.</em><p>根据任何实现了 <a class="reference internal" href="buffer.html#bufferobjects"><span class="std std-ref">缓冲区协议</span></a> 的对象 <em>o</em>，返回一个新的字节数组对象。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_FromStringAndSize">
|
||
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">PyByteArray_FromStringAndSize</code><span class="sig-paren">(</span>const char<em> *string</em>, Py_ssize_t<em> len</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_FromStringAndSize" title="永久链接至目标">¶</a></dt>
|
||
<dd><em class="refcount">Return value: New reference.</em><p>根据 <em>string</em> 及其长度 <em>len</em> 创建一个新的 bytearray 对象。 当失败时返回 <code class="docutils literal notranslate"><span class="pre">NULL</span></code>。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_Concat">
|
||
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">PyByteArray_Concat</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *a</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *b</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Concat" title="永久链接至目标">¶</a></dt>
|
||
<dd><em class="refcount">Return value: New reference.</em><p>连接字节数组 <em>a</em> 和 <em>b</em> 并返回一个带有结果的新的字节数组。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_Size">
|
||
Py_ssize_t <code class="sig-name descname">PyByteArray_Size</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *bytearray</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Size" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>在检查 <code class="docutils literal notranslate"><span class="pre">NULL</span></code> 指针后返回 <em>bytearray</em> 的大小。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_AsString">
|
||
char* <code class="sig-name descname">PyByteArray_AsString</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *bytearray</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_AsString" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>在检查 <code class="docutils literal notranslate"><span class="pre">NULL</span></code> 指针后返回将 <em>bytearray</em> 返回为一个字符数组。 返回的数组总是会附加一个额外的空字节。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_Resize">
|
||
int <code class="sig-name descname">PyByteArray_Resize</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *bytearray</em>, Py_ssize_t<em> len</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Resize" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>将 <em>bytearray</em> 的内部缓冲区的大小调整为 <em>len</em>。</p>
|
||
</dd></dl>
|
||
|
||
</section>
|
||
<section id="macros">
|
||
<h2>宏<a class="headerlink" href="#macros" title="永久链接至标题">¶</a></h2>
|
||
<p>这些宏减低安全性以换取性能，它们不检查指针。</p>
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_AS_STRING">
|
||
char* <code class="sig-name descname">PyByteArray_AS_STRING</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *bytearray</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_AS_STRING" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>C函数 <a class="reference internal" href="#c.PyByteArray_AsString" title="PyByteArray_AsString"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyByteArray_AsString()</span></code></a> 的宏版本。</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="c.PyByteArray_GET_SIZE">
|
||
Py_ssize_t <code class="sig-name descname">PyByteArray_GET_SIZE</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *bytearray</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_GET_SIZE" title="永久链接至目标">¶</a></dt>
|
||
<dd><p>C函数 <a class="reference internal" href="#c.PyByteArray_Size" title="PyByteArray_Size"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyByteArray_Size()</span></code></a> 的宏版本。</p>
|
||
</dd></dl>
|
||
|
||
</section>
|
||
</section>
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
|
||
<div class="sphinxsidebarwrapper">
|
||
<h3><a href="../contents.html">目录</a></h3>
|
||
<ul>
|
||
<li><a class="reference internal" href="#">字节数组对象</a><ul>
|
||
<li><a class="reference internal" href="#type-check-macros">类型检查宏</a></li>
|
||
<li><a class="reference internal" href="#direct-api-functions">直接 API 函数</a></li>
|
||
<li><a class="reference internal" href="#macros">宏</a></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
|
||
<h4>上一个主题</h4>
|
||
<p class="topless"><a href="bytes.html"
|
||
title="上一章">bytes 对象</a></p>
|
||
<h4>下一个主题</h4>
|
||
<p class="topless"><a href="unicode.html"
|
||
title="下一章">Unicode对象和编解码器</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/c-api/bytearray.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="unicode.html" title="Unicode对象和编解码器"
|
||
>下一页</a> |</li>
|
||
<li class="right" >
|
||
<a href="bytes.html" title="bytes 对象"
|
||
>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> »</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> »
|
||
</li>
|
||
|
||
<li class="nav-item nav-item-1"><a href="index.html" >Python/C API 参考手册</a> »</li>
|
||
<li class="nav-item nav-item-2"><a href="concrete.html" >具体的对象层</a> »</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>
|
||
|
|
||
</li>
|
||
|
||
</ul>
|
||
</div>
|
||
<div class="footer">
|
||
© <a href="../copyright.html">版权所有</a> 2001-2024, Python Software Foundation.
|
||
<br />
|
||
This page is licensed under the Python Software Foundation License Version 2.
|
||
<br />
|
||
Examples, recipes, and other code in the documentation are additionally licensed under the Zero Clause BSD License.
|
||
<br />
|
||
|
||
<br />
|
||
|
||
The Python Software Foundation is a non-profit corporation.
|
||
<a href="https://www.python.org/psf/donations/">Please donate.</a>
|
||
<br />
|
||
<br />
|
||
|
||
最后更新于 12月 09, 2024.
|
||
<a href="https://docs.python.org/3/bugs.html">Found a bug</a>?
|
||
<br />
|
||
|
||
Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 2.4.4.
|
||
</div>
|
||
|
||
</body>
|
||
</html> |