1020 lines
53 KiB
HTML
1020 lines
53 KiB
HTML
<!DOCTYPE html>
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>空终止字节字符串</title>
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<link rel="stylesheet" href="ext.css" />
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<link rel="stylesheet" href="site_modules.css" />
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</head>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-c_string_byte skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<div id="content"><a id="top"></a>
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<h1 id="firstHeading" class="firstHeading">空终止字节字符串</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="c.html">c</a>‎ | <a href="c-string.html">string</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<p>空终止字节字符串（ NTBS ）是尾随零值字节（空终止字符）的非零字节序列。字节字符串中的每个字节都是一些字符集的编码。例如，字符数组 <span class="t-c"><span class="mw-geshi c source-c"><span class="br0">{</span><span class="st0">'<span class="es2">\x63</span>'</span>,<span class="st0">'<span class="es2">\x61</span>'</span>,<span class="st0">'<span class="es2">\x74</span>'</span>,<span class="st0">'<span class="es5">\0</span>'</span><span class="br0">}</span></span></span> 是一个以 ASCII 编码表示字符串 <span class="t-c"><span class="mw-geshi c source-c"><span class="st0">"cat"</span></span></span> 的 NTBS 。</p>
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<h3><span class="mw-headline" id=".E5.87.BD.E6.95.B0">函数</span></h3>
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<table class="t-dsc-begin">
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<tr>
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<td colspan="2">
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<h5><span class="mw-headline" id=".E5.AD.97.E7.AC.A6.E5.88.86.E7.B1.BB">字符分类</span></h5>
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</td>
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</tr>
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><ctype.h></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isalnum.html"><span class="t-lines"><span>isalnum</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是字母或数字<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isalpha.html"><span class="t-lines"><span>isalpha</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是英文字母<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-islower.html"><span class="t-lines"><span>islower</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是小写字母<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isupper.html"><span class="t-lines"><span>isupper</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是大写字母<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isdigit.html"><span class="t-lines"><span>isdigit</span></span></a></div>
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</div>
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</td>
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<td>检查字符是否为数字<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isxdigit.html"><span class="t-lines"><span>isxdigit</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是十六进制的字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-iscntrl.html"><span class="t-lines"><span>iscntrl</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是控制字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isgraph.html"><span class="t-lines"><span>isgraph</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是可显示的字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isspace.html"><span class="t-lines"><span>isspace</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是空白字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isblank.html"><span class="t-lines"><span>isblank</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
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</div>
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</td>
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<td>检查一个字符是否是空格字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-isprint.html"><span class="t-lines"><span>isprint</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是可打印字符<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-ispunct.html"><span class="t-lines"><span>ispunct</span></span></a></div>
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</div>
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</td>
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<td>检查一个字符是否是一个标点符号<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr>
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<td colspan="2">
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<h5><span class="mw-headline" id=".E5.AD.97.E7.AC.A6.E6.93.8D.E4.BD.9C">字符操作</span></h5>
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</td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-tolower.html"><span class="t-lines"><span>tolower</span></span></a></div>
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</div>
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</td>
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<td>将字符转换成小写<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="c-string-byte-toupper.html"><span class="t-lines"><span>toupper</span></span></a></div>
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</div>
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</td>
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<td>将字符转换成大写<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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</table>
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<p>注意：将来可能添加以 <code><b>to</b></code> 或 <code><b>is</b></code> 后随小写字母起始的新增函数到头文件 <code>ctype.h</code> ，故不应于包含该头文件的程序中定义这些函数。</p>
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<table class="wikitable" style="font-size:85%; text-align:center;">
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<tr>
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<th colspan="2">ASCII值<br />
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(十六进制)</th>
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<th>字符</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-iscntrl.html"><tt>iscntrl</tt></a><br />
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<a href="c-string-wide-iswcntrl.html"><tt>iswcntrl</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isprint.html"><tt>isprint</tt></a><br />
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<a href="c-string-wide-iswprint.html"><tt>iswprint</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isspace.html"><tt>isspace</tt></a><br />
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<a href="c-string-wide-iswspace.html"><tt>iswspace</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isblank.html"><tt>isblank</tt></a><br />
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<a href="c-string-wide-iswblank.html"><tt>iswblank</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isgraph.html"><tt>isgraph</tt></a><br />
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<a href="c-string-wide-iswgraph.html"><tt>iswgraph</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-ispunct.html"><tt>ispunct</tt></a><br />
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<a href="c-string-wide-iswpunct.html"><tt>iswpunct</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isalnum.html"><tt>isalnum</tt></a><br />
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<a href="c-string-wide-iswalnum.html"><tt>iswalnum</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isalpha.html"><tt>isalpha</tt></a><br />
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<a href="c-string-wide-iswalpha.html"><tt>iswalpha</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isupper.html"><tt>isupper</tt></a><br />
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<a href="c-string-wide-iswupper.html"><tt>iswupper</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-islower.html"><tt>islower</tt></a><br />
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<a href="c-string-wide-iswlower.html"><tt>iswlower</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isdigit.html"><tt>isdigit</tt></a><br />
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<a href="c-string-wide-iswdigit.html"><tt>iswdigit</tt></a></p>
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</th>
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<th style="font-size:85%;">
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<p><a href="c-string-byte-isxdigit.html"><tt>isxdigit</tt></a><br />
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<a href="c-string-wide-iswxdigit.html"><tt>iswxdigit</tt></a></p>
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</th>
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</tr>
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<tr>
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<td>0 - 8</td>
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<td><code>0x00-0x08</code></td>
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<td>控制码 (<code>NUL</code>等)</td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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</tr>
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<tr>
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<td>9</td>
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<td><code>0x09</code></td>
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<td>制表符 (<code>\t</code>)</td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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</tr>
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<tr>
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<td>10 - 13</td>
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<td><code>0x0A-0x0D</code></td>
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<td>空白符 (<code>\n</code>, <code>\v</code>, <code>\f</code>, <code>\r</code>)</td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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</tr>
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<tr>
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<td>14 - 31</td>
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<td><code>0x0E-0x1F</code></td>
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<td>控制码</td>
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<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
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</tr>
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<tr>
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<td>32</td>
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<td><code>0x20</code></td>
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<td>空格</td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>33 - 47</td>
|
|
<td><code>0x21-0x2F</code></td>
|
|
<td><code>!"#$%&'()*+,-./</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>48 - 57</td>
|
|
<td><code>0x30-0x39</code></td>
|
|
<td><code>0123456789</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>58 - 64</td>
|
|
<td><code>0x3a-0x40</code></td>
|
|
<td><code>:;<=>?@</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>65 - 70</td>
|
|
<td><code>0x41-0x46</code></td>
|
|
<td><code>ABCDEF</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>71 - 90</td>
|
|
<td><code>0x47-0x5A</code></td>
|
|
<td><code>GHIJKLMNOPQRSTUVWXYZ</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>91 - 96</td>
|
|
<td><code>0x5B-0x60</code></td>
|
|
<td><code>[\]^_`</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>97 -102</td>
|
|
<td><code>0x61-0x66</code></td>
|
|
<td><code>abcdef</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>103-122</td>
|
|
<td><code>0x67-0x7A</code></td>
|
|
<td><code>ghijklmnopqrstuvwxyz</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>123-126</td>
|
|
<td><code>0x7B-0x7E</code></td>
|
|
<td><code>{|}~</code></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
<tr>
|
|
<td>127</td>
|
|
<td><code>0x7F</code></td>
|
|
<td>退格符 (<code>DEL</code>)</td>
|
|
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><b><code>≠0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"><b><code>0</code></b></td>
|
|
</tr>
|
|
</table>
|
|
<table class="t-dsc-begin">
|
|
<tr>
|
|
<td colspan="2">
|
|
<h5><span class="mw-headline" id=".E8.BD.AC.E6.8D.A2.E6.88.90.E6.95.B0.E5.80.BC.E6.A0.BC.E5.BC.8F">转换成数值格式</span></h5>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><stdlib.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-atof.html"><span class="t-lines"><span>atof</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成浮点值<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-atoi.html"><span class="t-lines"><span>atoi</span><span>atol</span><span>atoll</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成整数值<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strtol.html"><span class="t-lines"><span>strtol</span><span>strtoll</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成整数值<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strtoul.html"><span class="t-lines"><span>strtoul</span> <span>strtoull</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成无符号整数值<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strtof.html"><span class="t-lines"><span>strtof</span><span>strtod</span><span>strtold</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成浮点值<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><inttypes.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strtoimax.html"><span class="t-lines"><span>strtoimax</span><span>strtoumax</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将字节字符串转换成 <span class="t-c"><span class="mw-geshi c source-c"><a href="c-types-integer.html"><span class="kw118">intmax_t</span></a></span></span> 或 <span class="t-c"><span class="mw-geshi c source-c"><a href="c-types-integer.html"><span class="kw132">uintmax_t</span></a></span></span><br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="2">
|
|
<h5><span class="mw-headline" id=".E5.AD.97.E7.AC.A6.E4.B8.B2.E6.93.8D.E4.BD.9C">字符串操作</span></h5>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><string.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strcpy.html"><span class="t-lines"><span>strcpy</span><span>strcpy_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>复制一个字符串给另一个<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strncpy.html"><span class="t-lines"><span>strncpy</span><span>strncpy_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>从一个字符串复制一定数量的字符到另一个<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strcat.html"><span class="t-lines"><span>strcat</span><span>strcat_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>连接两个字符串<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strncat.html"><span class="t-lines"><span>strncat</span><span>strncat_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>连接两个字符串的一定数量字符<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strxfrm.html"><span class="t-lines"><span>strxfrm</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>变换字符串，使得 strcmp 会产生同 strcoll 的结果<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strdup.html"><span class="t-lines"><span>strdup</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c23">(C23)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>分配字符串的副本<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strndup.html"><span class="t-lines"><span>strndup</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c23">(C23)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>分配拥有指定大小的字符串副本<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="2">
|
|
<h5><span class="mw-headline" id=".E5.AD.97.E7.AC.A6.E4.B8.B2.E6.A3.80.E9.AA.8C">字符串检验</span></h5>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><string.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strlen.html"><span class="t-lines"><span>strlen</span><span>strnlen_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>返回给定字符串的长度<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strcmp.html"><span class="t-lines"><span>strcmp</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>比较两个字符串<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strncmp.html"><span class="t-lines"><span>strncmp</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>比较两个字符串的一定数量字符<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strcoll.html"><span class="t-lines"><span>strcoll</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>比较两个字符串，根据当前本地环境<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strchr.html"><span class="t-lines"><span>strchr</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>查找字符的首次出现<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strrchr.html"><span class="t-lines"><span>strrchr</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>查找字符的最后一次出现<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strspn.html"><span class="t-lines"><span>strspn</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>返回由另一个字符串中的字符分割的最大起始段长度<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strcspn.html"><span class="t-lines"><span>strcspn</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>返回另一个字符串所不具有的字符分割的最大起始段长度<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strpbrk.html"><span class="t-lines"><span>strpbrk</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>查找一个字符串中的任意一个字符在另一个字符串中的首个位置<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strstr.html"><span class="t-lines"><span>strstr</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>查找子串字符的首次出现<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strtok.html"><span class="t-lines"><span>strtok</span><span>strtok_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>查找字节字符串中的下一个记号<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="2">
|
|
<h5><span class="mw-headline" id=".E5.AD.97.E7.AC.A6.E6.95.B0.E7.BB.84.E6.93.8D.E4.BD.9C">字符数组操作</span></h5>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><string.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memchr.html"><span class="t-lines"><span>memchr</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>在数组中搜索字符的首次出现<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memcmp.html"><span class="t-lines"><span>memcmp</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>比较两块缓冲区<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memset.html"><span class="t-lines"><span>memset</span><span>memset_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>以字符填充缓冲区<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memcpy.html"><span class="t-lines"><span>memcpy</span><span>memcpy_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将一个缓冲区复制到另一个<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memmove.html"><span class="t-lines"><span>memmove</span><span>memmove_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>将一个缓冲区移动到另一个<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-memccpy.html"><span class="t-lines"><span>memccpy</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-since-c23">(C23)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>复制一个缓冲区到另一个，在指定的分隔符后停止<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="2">
|
|
<h5><span class="mw-headline" id=".E6.9D.82.E9.A1.B9">杂项</span></h5>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc-header">
|
|
<td colspan="2">
|
|
<div>定义于头文件 <code><string.h></code></div>
|
|
</td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="c-string-byte-strerror.html"><span class="t-lines"><span>strerror</span><span>strerror_s</span><span>strerrorlen_s</span></span></a></div>
|
|
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div>
|
|
</div>
|
|
</td>
|
|
<td>返回给定错误码的文本版本<br />
|
|
<span class="t-mark">(函数)</span></td>
|
|
</tr>
|
|
</table>
|
|
<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">引用</span></h3>
|
|
<div class="t-ref-std-11">
|
|
<ul>
|
|
<li>C11 标准（ISO/IEC 9899:2011）：</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.4 Character handling <ctype.h> (p: 200-204)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.8 Format conversion of integer types <inttypes.h> (p: 217-220)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
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<li>7.22 General utilities <stdlib.h> (p: 340-360)</li>
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|
</ul>
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</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
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<ul>
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|
<li>7.24 String handling <string.h> (p: 362-372)</li>
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|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.31.2 Character handling <ctype.h> (p: 455)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.31.5 Format conversion of integer types <inttypes.h> (p: 455)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.31.12 General utilities <stdlib.h> (p: 456)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.31.13 String handling <string.h> (p: 456)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>K.3.6 General utilities <stdlib.h> (p: 604=613)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>K.3.7 String handling <string.h> (p: 614-623)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<div class="t-ref-std-c99">
|
|
<ul>
|
|
<li>C99 标准（ISO/IEC 9899:1999）：</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.4 Character handling <ctype.h> (p: 181-185)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.8 Format conversion of integer types <inttypes.h> (p: 198-201)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.20 General utilities <stdlib.h> (p: 306-324)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.21 String handling <string.h> (p: 325-334)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.26.2 Character handling <ctype.h> (p: 401)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.26.4 Format conversion of integer types <inttypes.h> (p: 401)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.26.10 General utilities <stdlib.h> (p: 402)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>7.26.11 String handling <string.h> (p: 402)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<div class="t-ref-std-c89">
|
|
<ul>
|
|
<li>C89/C90 标准（ISO/IEC 9899:1990）：</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.3 CHARACTER HANDLING <ctype.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.10 GENERAL UTILITIES <stdlib.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.11 STRING HANDLING <string.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.13.2 Character handling <ctype.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.13.7 General utilities <stdlib.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>4.13.8 String handling <string.h></li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<table class="t-dsc-begin"></table>
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</div>
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</div>
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</div>
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<div class="visualClear"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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