162 lines
9.0 KiB
HTML
162 lines
9.0 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
|
|
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title>continue语句</title>
|
|
<link rel="stylesheet" href="ext.css" />
|
|
<link rel="stylesheet" href="site_modules.css" />
|
|
</head>
|
|
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-c_language_continue skin-cppreference2 action-view cpp-navbar">
|
|
<div id="cpp-content-base">
|
|
<div id="content"><a id="top"></a>
|
|
<h1 id="firstHeading" class="firstHeading">continue语句</h1>
|
|
<div id="bodyContent">
|
|
<div id="contentSub"><span class="subpages">< <a href="c.html">c</a>‎ | <a href="c-language.html">language</a></span></div>
|
|
<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
|
|
<p>导致跳过整个 <a href="c-language-for.html">for</a>、 <a href="c-language-while.html">while</a> 或 <a href="c-language-do.html">do-while</a> 循环体的剩余部分。</p>
|
|
<p>在使用条件语句忽略循环剩余部分显得笨拙时使用。</p>
|
|
<h3><span class="mw-headline" id=".E8.AF.AD.E6.B3.95">语法</span></h3>
|
|
<table class="t-sdsc-begin">
|
|
<tr>
|
|
<td colspan="10" class="t-sdsc-sep"></td>
|
|
</tr>
|
|
<tr class="t-sdsc">
|
|
<td class="t-sdsc-nopad"><span class="t-spar">属性说明符序列</span><span class="t-mark">(可选)</span> <code><b>continue</b></code> <code><b>;</b></code></td>
|
|
<td class="t-sdsc-nopad"></td>
|
|
<td class="t-sdsc-nopad"></td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="10" class="t-sdsc-sep"></td>
|
|
</tr>
|
|
</table>
|
|
<table class="t-par-begin">
|
|
<tr class="t-par">
|
|
<td><span class="t-spar">属性说明符序列</span></td>
|
|
<td>-</td>
|
|
<td><span class="t-mark-rev t-since-c23">(C23)</span>可选的<a href="c-language-attributes.html">属性</a>列表,应用到 <code>continue</code> 语句</td>
|
|
</tr>
|
|
</table>
|
|
<h3><span class="mw-headline" id=".E8.A7.A3.E9.87.8A">解释</span></h3>
|
|
<p><code>continue</code> 语句导致如同用 <a href="c-language-goto.html">goto</a> 跳转到循环体的结尾(它仅能出现在 <a href="c-language-for.html">for</a>、 <a href="c-language-while.html">while</a> 及 <a href="c-language-do.html">do-while</a> 的循环体内)。</p>
|
|
<p>对于 <a href="c-language-while.html">while</a> 循环,它表现为</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="c source-c">
|
|
<pre class="de1"><span class="kw1">while</span> <span class="br0">(</span><span class="coMULTI">/* ... */</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<span class="co1">// ... </span>
|
|
<span class="kw1">continue</span><span class="sy4">;</span> <span class="co1">// 表现为 goto contin;</span>
|
|
<span class="co1">// ... </span>
|
|
contin<span class="sy4">:;</span>
|
|
<span class="br0">}</span></pre></div>
|
|
</div>
|
|
<p>对于 <a href="c-language-do.html">do-while</a> 循环,它表现为:</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="c source-c">
|
|
<pre class="de1"><span class="kw1">do</span> <span class="br0">{</span>
|
|
<span class="co1">// ... </span>
|
|
<span class="kw1">continue</span><span class="sy4">;</span> <span class="co1">// 表现为 goto contin;</span>
|
|
<span class="co1">// ... </span>
|
|
contin<span class="sy4">:;</span>
|
|
<span class="br0">}</span> <span class="kw1">while</span> <span class="br0">(</span><span class="coMULTI">/* ... */</span><span class="br0">)</span><span class="sy4">;</span></pre></div>
|
|
</div>
|
|
<p>对于 <a href="c-language-for.html">for</a> 循环,它表现为:</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="c source-c">
|
|
<pre class="de1"><span class="kw1">for</span> <span class="br0">(</span><span class="coMULTI">/* ... */</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<span class="co1">// ... </span>
|
|
<span class="kw1">continue</span><span class="sy4">;</span> <span class="co1">// 表现为 goto contin;</span>
|
|
<span class="co1">// ... </span>
|
|
contin<span class="sy4">:;</span>
|
|
<span class="br0">}</span></pre></div>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.85.B3.E9.94.AE.E8.AF.8D">关键词</span></h3>
|
|
<p><a href="c-keyword-continue.html"><tt>continue</tt></a></p>
|
|
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
|
|
<div class="t-example">
|
|
<div class="t-example-live-link"></div>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="c source-c">
|
|
<pre class="de1"><span class="co2">#include <stdio.h></span>
|
|
|
|
<span class="kw4">int</span> main<span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>
|
|
<span class="br0">{</span>
|
|
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">int</span> i <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> i <span class="sy1"><</span> <span class="nu0">10</span><span class="sy4">;</span> i<span class="sy2">++</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<span class="kw1">if</span> <span class="br0">(</span>i <span class="sy3">!</span><span class="sy1">=</span> <span class="nu0">5</span><span class="br0">)</span> <span class="kw1">continue</span><span class="sy4">;</span>
|
|
<a href="c-io-fprintf.html"><span class="kw851">printf</span></a><span class="br0">(</span><span class="st0">"%d "</span>, i<span class="br0">)</span><span class="sy4">;</span> <span class="co1">// 每次 i != 5 时跳过此语句</span>
|
|
<span class="br0">}</span>
|
|
|
|
<a href="c-io-fprintf.html"><span class="kw851">printf</span></a><span class="br0">(</span><span class="st0">"<span class="es1">\n</span>"</span><span class="br0">)</span><span class="sy4">;</span>
|
|
|
|
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">int</span> j <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> j <span class="sy1"><</span> <span class="nu0">2</span><span class="sy4">;</span> j<span class="sy2">++</span><span class="br0">)</span> <span class="br0">{</span>
|
|
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">int</span> k <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> k <span class="sy1"><</span> <span class="nu0">5</span><span class="sy4">;</span> k<span class="sy2">++</span><span class="br0">)</span> <span class="br0">{</span> <span class="co1">// 只有此循环受 continue 影响</span>
|
|
<span class="kw1">if</span> <span class="br0">(</span>k <span class="sy1">==</span> <span class="nu0">3</span><span class="br0">)</span> <span class="kw1">continue</span><span class="sy4">;</span>
|
|
<a href="c-io-fprintf.html"><span class="kw851">printf</span></a><span class="br0">(</span><span class="st0">"%d%d "</span>, j, k<span class="br0">)</span><span class="sy4">;</span> <span class="co1">// 每次 k == 3 时跳过此语句</span>
|
|
<span class="br0">}</span>
|
|
<span class="br0">}</span>
|
|
<span class="br0">}</span></pre></div>
|
|
</div>
|
|
<p>输出:</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="text source-text">
|
|
<pre class="de1">5
|
|
00 01 02 04 10 11 12 14</pre></div>
|
|
</div>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">引用</span></h3>
|
|
<div class="t-ref-std-17">
|
|
<ul>
|
|
<li>C17 标准(ISO/IEC 9899:2018):</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>6.8.6.2 The continue statement (p: 111)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<div class="t-ref-std-11">
|
|
<ul>
|
|
<li>C11 标准(ISO/IEC 9899:2011):</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>6.8.6.2 The continue statement (p: 153)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<div class="t-ref-std-c99">
|
|
<ul>
|
|
<li>C99 标准(ISO/IEC 9899:1999):</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>6.8.6.2 The continue statement (p: 138)</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<div class="t-ref-std-c89">
|
|
<ul>
|
|
<li>C89/C90 标准(ISO/IEC 9899:1990):</li>
|
|
</ul>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>3.6.6.2 The continue statement</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
|
|
<table class="t-dsc-begin"></table>
|
|
</div>
|
|
<div class="visualClear"></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|