65 lines
3.4 KiB
HTML
65 lines
3.4 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>std::getchar</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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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_io_c_getchar 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"><span style="font-size:0.7em; line-height:130%">std::</span>getchar</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-io.html">io</a>‎ | <a href="cpp-io-c.html">c</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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<table class="t-dcl-begin">
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<div>定义于头文件 <code><a href="cpp-header-cstdio.html"><cstdio></a></code></div>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">int</span> getchar<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td></td>
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<p>从 <span class="t-lc"><a href="cpp-io-c.html">stdin</a></span> 读取下个字符。</p>
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<p>等价于 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-io-c-fgetc.html"><span class="kw1822">std::<span class="me2">getc</span></span></a><span class="br0">(</span><span class="kw2">stdin</span><span class="br0">)</span></span></span> 。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<p>（无）</p>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p>成功时为获得的字符，失败时为 <span class="t-lc"><a href="cpp-io-c.html">EOF</a></span> 。</p>
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<p>若文件尾条件导致失败，则另外设置 <span class="t-lc"><a href="cpp-io-c.html">stdin</a></span> 上的<i>文件尾</i>指示器（见 <span class="t-lc">feof()</span> ）。若某个其他错误导致失败，则设置 <span class="t-lc"><a href="cpp-io-c.html">stdin</a></span> 上的<i>错误</i>指示器（见 <span class="t-lc">ferror()</span> ）。</p>
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<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">
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<div class="t-dsc-member-div">
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<div><a href="cpp-io-c-fgetc.html"><span class="t-lines"><span>fgetc</span><span>getc</span></span></a></div>
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</div>
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</td>
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<td>从文件流获取字符<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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