92 lines
4.9 KiB
HTML
92 lines
4.9 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::gets</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-cpp_io_c_gets 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>gets</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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<tbody>
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<tr class="t-dsc-header">
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<td>
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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>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl t-until-cxx14">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span><span class="sy2">*</span> gets<span class="br0">(</span> <span class="kw4">char</span><span class="sy2">*</span> str <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark">(C++11 中弃用)</span><br />
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<span class="t-mark-rev t-until-cxx14">(C++14 中移除)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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</tbody>
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</table>
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<p>读取 <span class="t-lc"><a href="cpp-io-c.html">stdin</a></span> 到给定字符串，直至找到首个换行字符或文件尾发生。</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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<table class="t-par-begin">
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<tr class="t-par">
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<td>str</td>
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<td>-</td>
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<td>要写入的字符串</td>
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</tr>
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</table>
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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 <code>str</code> ，失败时为空指针。</p>
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<p>若因文件尾条件失败，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"><a href="cpp-io-c-feof.html">std::feof()</a></span> ）。若因某些其他错误失败，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"><a href="cpp-io-c-ferror.html">std::ferror()</a></span> ）。</p>
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<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">注解</span></h3>
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<p>此函数不提供给出足够长的输入字符串时，避免目标数组缓冲区溢出的手段。 <code>std::gets</code> 于 C++11 被弃用，并于 C++14 移除。</p>
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<p>可使用 <span class="t-lc"><a href="cpp-io-c-fgets.html">std::fgets</a></span> 替代。</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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<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="cpp-io-c-fscanf.html"><span class="t-lines"><span>scanf</span><span>fscanf</span><span>sscanf</span></span></a></div>
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</div>
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</td>
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<td>从 <span class="t-lc"><a href="cpp-io-c.html">stdin</a></span>、文件流或缓冲区读取有格式输入<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="cpp-io-c-fgets.html"><span class="t-lines"><span>fgets</span></span></a></div>
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</div>
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</td>
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<td>从文件流获取字符串<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="cpp-io-c-fputs.html"><span class="t-lines"><span>fputs</span></span></a></div>
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</div>
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</td>
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<td>写字符串到文件流<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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</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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