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<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::queue</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_container_queue skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>queue</h1>
<div id="bodyContent">
<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-container.html">container</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-queue.html">&lt;queue&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><br /></span>
<p>&nbsp; &nbsp; <span class="kw1">class</span> T,<br />
&nbsp; &nbsp; <span class="kw1">class</span> Container <span class="sy1">=</span> <a href="cpp-container-deque.html"><span class="kw1271">std::<span class="me2">deque</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><br /></p>
<span class="sy1">&gt;</span> <span class="kw1">class</span> queue<span class="sy4">;</span></div>
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<p><code>std::queue</code> &#31867;&#26159;&#23481;&#22120;&#36866;&#37197;&#22120;&#65292;&#23427;&#32473;&#20104;&#31243;&#24207;&#21592;&#38431;&#21015;&#30340;&#21151;&#33021;&mdash;&mdash;&#23588;&#20854;&#26159; FIFO &#65288;&#20808;&#36827;&#20808;&#20986;&#65289;&#25968;&#25454;&#32467;&#26500;&#12290;</p>
<p>&#31867;&#27169;&#26495;&#34920;&#29616;&#20026;&#24213;&#23618;&#23481;&#22120;&#30340;&#21253;&#35013;&#22120;&mdash;&mdash;&#21482;&#25552;&#20379;&#29305;&#23450;&#30340;&#20989;&#25968;&#38598;&#21512;&#12290; queue &#22312;&#24213;&#23618;&#23481;&#22120;&#23614;&#31471;&#25512;&#20837;&#20803;&#32032;&#65292;&#20174;&#39318;&#31471;&#24377;&#20986;&#20803;&#32032;&#12290;</p>
<h3><span class="mw-headline" id=".E6.A8.A1.E6.9D.BF.E5.BD.A2.E5.8F.82">&#27169;&#26495;&#24418;&#21442;</span></h3>
<table class="t-par-begin">
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<td>T</td>
<td>-</td>
<td>&#23384;&#20648;&#30340;&#20803;&#32032;&#31867;&#22411;&#12290;<span class="t-rev-inl t-since-cxx17"><span>&#33509; <code>T</code> &#19982; <code>Container::value_type</code> &#19981;&#26159;&#21516;&#19968;&#31867;&#22411;&#21017;&#34892;&#20026;&#26410;&#23450;&#20041;&#12290;</span> <span><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></span></span></td>
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<td>Container</td>
<td>-</td>
<td>&#29992;&#20110;&#23384;&#20648;&#20803;&#32032;&#30340;&#24213;&#23618;&#23481;&#22120;&#12290;&#23481;&#22120;&#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-SequenceContainer.html"><span style="font-style:italic">&#24207;&#21015;&#23481;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(SequenceContainer)</span></a> &#30340;&#35201;&#27714;&#12290;&#21478;&#22806;&#65292;&#23427;&#24517;&#39035;&#25552;&#20379;&#24102;&#36890;&#24120;&#35821;&#20041;&#30340;&#19979;&#21015;&#20989;&#25968;&#65306;
<ul>
<li><code>back()</code></li>
<li><code>front()</code></li>
<li><code>push_back()</code></li>
<li><code>pop_front()</code></li>
</ul>
<p>&#26631;&#20934;&#23481;&#22120; <span class="t-lc"><a href="cpp-container-deque.html">std::deque</a></span> &#21644; <span class="t-lc"><a href="cpp-container-list.html">std::list</a></span> &#28385;&#36275;&#36825;&#20123;&#35201;&#27714;&#12290;</p>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">&#25104;&#21592;&#31867;&#22411;</span></h3>
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<td>&#25104;&#21592;&#31867;&#22411;</td>
<td>&#23450;&#20041;</td>
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<td><code>container_type</code></td>
<td><code>Container</code></td>
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<td><code>value_type</code></td>
<td><code>Container::value_type</code></td>
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<tr class="t-dsc">
<td><code>size_type</code></td>
<td><code>Container::size_type</code></td>
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<td><code>reference</code></td>
<td><code>Container::reference</code></td>
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<td><code>const_reference</code></td>
<td><code>Container::const_reference</code></td>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">&#25104;&#21592;&#20989;&#25968;</span></h3>
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
<div><a href="cpp-container-queue-queue.html"><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></a></div>
</div>
</td>
<td>&#26500;&#36896; <code>queue</code><br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div t-dsc-member-nobold-div">
<div><a href="cpp-container-queue-~queue.html"><span class="t-lines"><span>(&#26512;&#26500;&#20989;&#25968;)</span></span></a></div>
</div>
</td>
<td>&#26512;&#26500; <code>queue</code><br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-operator=.html"><span class="t-lines"><span>operator=</span></span></a></div>
</div>
</td>
<td>&#36171;&#20540;&#32473;&#23481;&#22120;&#36866;&#37197;&#22120;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E5.85.83.E7.B4.A0.E8.AE.BF.E9.97.AE">&#20803;&#32032;&#35775;&#38382;</span></h5>
</td>
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<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-front.html"><span class="t-lines"><span>front</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#31532;&#19968;&#20010;&#20803;&#32032;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-back.html"><span class="t-lines"><span>back</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#26368;&#21518;&#19968;&#20010;&#20803;&#32032;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E5.AE.B9.E9.87.8F">&#23481;&#37327;</span></h5>
</td>
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<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-empty.html"><span class="t-lines"><span>empty</span></span></a></div>
</div>
</td>
<td>&#26816;&#26597;&#24213;&#23618;&#23481;&#22120;&#26159;&#21542;&#20026;&#31354;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-size.html"><span class="t-lines"><span>size</span></span></a></div>
</div>
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<td>&#36820;&#22238;&#23481;&#32435;&#30340;&#20803;&#32032;&#25968;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E4.BF.AE.E6.94.B9.E5.99.A8">&#20462;&#25913;&#22120;</span></h5>
</td>
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<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-push.html"><span class="t-lines"><span>push</span></span></a></div>
</div>
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<td>&#21521;&#38431;&#21015;&#23614;&#37096;&#25554;&#20837;&#20803;&#32032;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-emplace.html"><span class="t-lines"><span>emplace</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#22312;&#23614;&#37096;&#21407;&#20301;&#26500;&#36896;&#20803;&#32032;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-pop.html"><span class="t-lines"><span>pop</span></span></a></div>
</div>
</td>
<td>&#21024;&#38500;&#39318;&#20010;&#20803;&#32032;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-swap.html"><span class="t-lines"><span>swap</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#20132;&#25442;&#20869;&#23481;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr>
<td colspan="2">
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.AF.B9.E8.B1.A1">&#25104;&#21592;&#23545;&#35937;</span></h3>
</td>
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<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><span class="t-lines"><span><span class="t-dsc-small">Container</span> c</span></span></div>
</div>
</td>
<td>&#24213;&#23618;&#23481;&#22120;<br />
<span class="t-mark">(&#21463;&#20445;&#25252;&#25104;&#21592;&#23545;&#35937;)</span></td>
</tr>
</table>
<h3><span class="mw-headline" id=".E9.9D.9E.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">&#38750;&#25104;&#21592;&#20989;&#25968;</span></h3>
<table class="t-dsc-begin">
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<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-operator_cmp.html"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&lt;=</span><span>operator&gt;</span><span>operator&gt;=</span><span>operator&lt;=&gt;</span></span></a></div>
<div><span class="t-lines"><span></span><span></span><span></span><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#25353;&#29031;&#23383;&#20856;&#39034;&#24207;&#27604;&#36739; queue &#20013;&#30340;&#20540;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-swap2.html"><span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::queue)</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#29305;&#21270; <span class="t-lc"><a href="cpp-algorithm-swap.html">std::swap</a></span> &#31639;&#27861;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BE.85.E5.8A.A9.E7.B1.BB">&#36741;&#21161;&#31867;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-queue-uses_allocator.html"><span class="t-lines"><span>std::uses_allocator<span class="t-dsc-small">&lt;std::queue&gt;</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#29305;&#21270; <span class="t-lc"><a href="cpp-memory-uses_allocator.html">std::uses_allocator</a></span> &#31867;&#22411;&#29305;&#24449;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;&#29305;&#21270;)</span></td>
</tr>
</table>
<h3><span class="mw-headline" id=".E6.8E.A8.E5.AF.BC.E6.8C.87.E5.BC.95.28C.2B.2B17_.E8.B5.B7.29"><a href="cpp-container-queue-deduction_guides.html">&#25512;&#23548;&#25351;&#24341;</a><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></span></h3>
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