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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>deque</h1>
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<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-deque.html">&lt;deque&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> Allocator <span class="sy1">=</span> <a href="cpp-memory-allocator.html"><span class="kw700">std::<span class="me2">allocator</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> deque<span class="sy4">;</span></div>
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<td>(1)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">namespace</span> pmr <span class="br0">{</span><br /></span>
<p>&nbsp; &nbsp; <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span><br />
&nbsp; &nbsp; <span class="kw1">using</span> deque <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">deque</span><span class="sy1">&lt;</span>T, <a href="cpp-memory-polymorphic_allocator.html"><span class="kw707">std::<span class="me2">pmr</span><span class="sy4">::</span><span class="me2">polymorphic_allocator</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span><span class="sy4">;</span><br /></p>
<span class="br0">}</span></div>
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<td>(2)</td>
<td><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
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<p><code>std::deque</code> &#65288; double-ended queue &#65292;&#21452;&#31471;&#38431;&#21015;&#65289;&#26159;&#26377;&#19979;&#26631;&#39034;&#24207;&#23481;&#22120;&#65292;&#23427;&#20801;&#35768;&#22312;&#20854;&#39318;&#23614;&#20004;&#31471;&#24555;&#36895;&#25554;&#20837;&#21450;&#21024;&#38500;&#12290;&#21478;&#22806;&#65292;&#22312; deque &#20219;&#19968;&#31471;&#25554;&#20837;&#25110;&#21024;&#38500;&#19981;&#20250;&#38750;&#27861;&#21270;&#25351;&#21521;&#20854;&#20313;&#20803;&#32032;&#30340;&#25351;&#38024;&#25110;&#24341;&#29992;&#12290;</p>
<p>&#19982; <span class="t-lc"><a href="cpp-container-vector.html">std::vector</a></span> &#30456;&#21453;&#65292; deque &#30340;&#20803;&#32032;&#19981;&#26159;&#30456;&#25509;&#23384;&#20648;&#30340;&#65306;&#20856;&#22411;&#23454;&#29616;&#29992;&#21333;&#29420;&#20998;&#37197;&#30340;&#22266;&#23450;&#22823;&#23567;&#25968;&#32452;&#30340;&#24207;&#21015;&#65292;&#22806;&#21152;&#39069;&#22806;&#30340;&#30331;&#35760;&#65292;&#36825;&#34920;&#31034;&#19979;&#26631;&#35775;&#38382;&#24517;&#39035;&#36827;&#34892;&#20108;&#27425;&#25351;&#38024;&#35299;&#24341;&#29992;&#65292;&#19982;&#20043;&#30456;&#27604; vector &#30340;&#19979;&#26631;&#35775;&#38382;&#21482;&#36827;&#34892;&#19968;&#27425;&#12290;</p>
<p>deque &#30340;&#23384;&#20648;&#25353;&#38656;&#33258;&#21160;&#25193;&#23637;&#21450;&#25910;&#32553;&#12290;&#25193;&#24352; deque &#27604;&#25193;&#24352; <span class="t-lc"><a href="cpp-container-vector.html">std::vector</a></span> &#26356;&#20248;&#65292;&#22240;&#20026;&#23427;&#19981;&#28041;&#21450;&#21040;&#22797;&#21046;&#26082;&#23384;&#20803;&#32032;&#21040;&#26032;&#20869;&#23384;&#20301;&#32622;&#12290;&#21478;&#19968;&#26041;&#38754;&#65292; deque &#20856;&#22411;&#22320;&#25317;&#26377;&#36739;&#22823;&#30340;&#26368;&#23567;&#20869;&#23384;&#24320;&#38144;&#65307;&#21482;&#20445;&#26377;&#19968;&#20010;&#20803;&#32032;&#30340; deque &#24517;&#39035;&#20998;&#37197;&#20854;&#25972;&#20010;&#20869;&#37096;&#25968;&#32452;&#65288;&#20363;&#22914; 64 &#20301; libstdc++ &#19978;&#20026;&#23545;&#35937;&#22823;&#23567; 8 &#20493;&#65307; 64 &#20301; libc++ &#19978;&#20026;&#23545;&#35937;&#22823;&#23567; 16 &#20493;&#25110; 4096 &#23383;&#33410;&#30340;&#36739;&#22823;&#32773;&#65289;&#12290;</p>
<p>deque &#19978;&#24120;&#35265;&#25805;&#20316;&#30340;&#22797;&#26434;&#24230;&#65288;&#25928;&#29575;&#65289;&#22914;&#19979;&#65306;</p>
<ul>
<li>&#38543;&#26426;&#35775;&#38382;&mdash;&mdash;&#24120;&#25968; <span class="texhtml" style="white-space: nowrap;">O(1)</span></li>
<li>&#22312;&#32467;&#23614;&#25110;&#36215;&#22987;&#25554;&#20837;&#25110;&#31227;&#38500;&#20803;&#32032;&mdash;&mdash;&#24120;&#25968; <span class="texhtml" style="white-space: nowrap;">O(1)</span></li>
<li>&#25554;&#20837;&#25110;&#31227;&#38500;&#20803;&#32032;&mdash;&mdash;&#32447;&#24615; <span class="texhtml" style="white-space: nowrap;">O(n)</span></li>
</ul>
<p><code>std::deque</code> &#28385;&#36275;<a href="cpp-named_req-Container.html"><span style="font-style:italic">&#23481;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(Container)</span></a> &#12289;<a href="cpp-named_req-AllocatorAwareContainer.html"><span style="font-style:italic">&#30693;&#20998;&#37197;&#22120;&#23481;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(AllocatorAwareContainer)</span></a> &#12289;<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> &#21644;<a href="cpp-named_req-ReversibleContainer.html"><span style="font-style:italic">&#21487;&#36870;&#23481;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(ReversibleContainer)</span></a> &#30340;&#35201;&#27714;&#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">
<tr class="t-par">
<td>T</td>
<td>-</td>
<td>&#20803;&#32032;&#30340;&#31867;&#22411;&#12290;
<table class="t-rev-begin">
<tr class="t-rev t-until-cxx11">
<td><code>T</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-CopyAssignable.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyAssignable)</span></a> &#21644;<a href="cpp-named_req-CopyConstructible.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#26500;&#36896;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyConstructible)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
</tr>
<tr class="t-rev t-since-cxx11">
<td>&#21152;&#35832;&#20803;&#32032;&#30340;&#35201;&#27714;&#20381;&#36182;&#20110;&#23481;&#22120;&#19978;&#36827;&#34892;&#30340;&#23454;&#38469;&#25805;&#20316;&#12290;&#27867;&#35328;&#20043;&#65292;&#35201;&#27714;&#20803;&#32032;&#31867;&#22411;&#26159;&#23436;&#25972;&#31867;&#22411;&#24182;&#28385;&#36275;<a href="cpp-named_req-Erasable.html"><span style="font-style:italic">&#21487;&#25830;&#38500;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(Erasable)</span></a> &#30340;&#35201;&#27714;&#65292;&#20294;&#35768;&#22810;&#25104;&#21592;&#20989;&#25968;&#38468;&#24102;&#20102;&#26356;&#20005;&#26684;&#30340;&#35201;&#27714;&#12290;</td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
</tr>
</table>
<p></p>
</td>
</tr>
<tr class="t-par">
<td>Allocator</td>
<td>-</td>
<td>&#29992;&#20110;&#33719;&#21462;/&#37322;&#25918;&#20869;&#23384;&#21450;&#26500;&#36896;/&#26512;&#26500;&#20869;&#23384;&#20013;&#20803;&#32032;&#30340;&#20998;&#37197;&#22120;&#12290;&#31867;&#22411;&#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-Allocator.html"><span style="font-style:italic">&#20998;&#37197;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(Allocator)</span></a> &#30340;&#35201;&#27714;&#12290;&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp">Allocator<span class="sy4">::</span><span class="me2">value_type</span></span></span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp">T</span></span> &#19981;&#21516;&#21017;<span class="t-rev-inl t-until-cxx20"><span>&#34892;&#20026;&#26410;&#23450;&#20041;</span> <span><span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></span></span><span class="t-rev-inl t-since-cxx20"><span>&#31243;&#24207;&#38750;&#33391;&#26500;</span> <span><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></span></span>&#12290;</td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BF.AD.E4.BB.A3.E5.99.A8.E9.9D.9E.E6.B3.95.E5.8C.96">&#36845;&#20195;&#22120;&#38750;&#27861;&#21270;</span></h3>
<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style="">
<tr>
<td class="mbox-empty-cell"></td>
<td class="mbox-text" style="">&#26412;&#33410;&#26410;&#23436;&#25104;</td>
</tr>
</table>
<p>&#27492;&#33410;&#26377;&#20173;&#23569;&#37327;&#19981;&#20934;&#30830;&#22788;&#65292;&#26356;&#22810;&#32454;&#33410;&#35831;&#26597;&#30475;&#28041;&#21450;&#21333;&#29420;&#25104;&#21592;&#20989;&#25968;&#30340;&#39029;&#38754;</p>
<table class="dsctable" style="font-size:0.8em">
<tr>
<th>&#25805;&#20316;</th>
<th>&#34987;&#38750;&#27861;&#21270;</th>
</tr>
<tr>
<td>&#25152;&#26377;&#21482;&#35835;&#25805;&#20316;</td>
<td>&#20915;&#19981;</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-swap.html">swap</a></span> &#12289; <span class="t-lc"><a href="cpp-algorithm-swap.html">std::swap</a></span></td>
<td>&#23614;&#21518;&#36845;&#20195;&#22120;&#21487;&#33021;&#34987;&#38750;&#27861;&#21270;&#65288;&#23454;&#29616;&#23450;&#20041;&#65289;</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-shrink_to_fit.html">shrink_to_fit</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-clear.html">clear</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-insert.html">insert</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-emplace.html">emplace</a></span> &#12289;<br />
<span class="t-lc"><a href="cpp-container-deque-push_front.html">push_front</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-push_back.html">push_back</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-emplace_front.html">emplace_front</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-emplace_back.html">emplace_back</a></span></td>
<td>&#22987;&#32456;</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-erase.html">erase</a></span></td>
<td>&#33509;&#22312;&#36215;&#22987;&#25830;&#38500;&mdash;&mdash;&#20165;&#34987;&#25830;&#38500;&#20803;&#32032;<br />
<p>&#33509;&#22312;&#26411;&#23614;&#25830;&#38500;&mdash;&mdash;&#20165;&#34987;&#25830;&#38500;&#20803;&#32032;&#21644;&#23614;&#21518;&#36845;&#20195;&#22120;<br />
&#21542;&#21017;&mdash;&mdash;&#38750;&#27861;&#21270;&#25152;&#26377;&#36845;&#20195;&#22120;&#65288;&#21253;&#21547;&#23614;&#21518;&#36845;&#20195;&#22120;&#65289;&#12290;</p>
</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-resize.html">resize</a></span></td>
<td>&#33509;&#26032;&#22823;&#23567;&#23567;&#20110;&#26087;&#32773;&#65306;&#20165;&#34987;&#25830;&#38500;&#20803;&#32032;&#21644;&#23614;&#21518;&#36845;&#20195;&#22120;<br />
<p>&#33509;&#26032;&#22823;&#23567;&#22823;&#20110;&#26087;&#32773;&#65306;&#38750;&#27861;&#21270;&#25152;&#26377;&#36845;&#20195;&#22120;<br />
&#21542;&#21017;&mdash;&mdash;&#19981;&#38750;&#27861;&#21270;&#20219;&#20309;&#36845;&#20195;&#22120;&#12290;</p>
</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-pop_front.html">pop_front</a></span></td>
<td>&#20165;&#26377;&#25351;&#21521;&#34987;&#25830;&#38500;&#20803;&#32032;&#32773;</td>
</tr>
<tr>
<td><span class="t-lc"><a href="cpp-container-deque-pop_back.html">pop_back</a></span></td>
<td>&#20165;&#26377;&#25351;&#21521;&#34987;&#25830;&#38500;&#20803;&#32032;&#32773;&#21644;&#23614;&#21518;&#36845;&#20195;&#22120;</td>
</tr>
</table>
<h4><span class="mw-headline" id=".E9.9D.9E.E6.B3.95.E5.8C.96.E6.B3.A8.E6.84.8F">&#38750;&#27861;&#21270;&#27880;&#24847;</span></h4>
<ul>
<li>&#20174; deque &#20219;&#19968;&#31471;&#25554;&#20837;&#26102;&#65292; <span class="t-lc"><a href="cpp-container-deque-insert.html">insert</a></span> &#21644; <span class="t-lc"><a href="cpp-container-deque-emplace.html">emplace</a></span> &#19981;&#20250;&#38750;&#27861;&#21270;&#24341;&#29992;&#12290;</li>
<li><span class="t-lc"><a href="cpp-container-deque-push_front.html">push_front</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-push_back.html">push_back</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-emplace_front.html">emplace_front</a></span> &#21644; <span class="t-lc"><a href="cpp-container-deque-emplace_back.html">emplace_back</a></span> &#19981;&#20250;&#38750;&#27861;&#21270;&#20219;&#20309;&#21040; deque &#20803;&#32032;&#30340;&#24341;&#29992;&#12290;</li>
<li>&#20174; deque &#20219;&#19968;&#31471;&#25830;&#38500;&#26102;&#65292; <span class="t-lc"><a href="cpp-container-deque-erase.html">erase</a></span> &#12289; <span class="t-lc"><a href="cpp-container-deque-pop_front.html">pop_front</a></span> &#21644; <span class="t-lc"><a href="cpp-container-deque-pop_back.html">pop_back</a></span> &#19981;&#20250;&#38750;&#27861;&#21270;&#21040;&#26410;&#25830;&#38500;&#20803;&#32032;&#30340;&#24341;&#29992;&#12290;</li>
<li>&#20197;&#36739;&#23567;&#30340;&#22823;&#23567;&#35843;&#29992; <span class="t-lc"><a href="cpp-container-deque-resize.html">resize</a></span> &#19981;&#20250;&#38750;&#27861;&#21270;&#20219;&#20309;&#21040;&#26410;&#25830;&#38500;&#20803;&#32032;&#30340;&#24341;&#29992;&#12290;</li>
<li>&#20197;&#36739;&#22823;&#30340;&#22823;&#23567;&#35843;&#29992; <span class="t-lc"><a href="cpp-container-deque-resize.html">resize</a></span> &#19981;&#20250;&#38750;&#27861;&#21270;&#20219;&#20309;&#21040; deque &#20803;&#32032;&#30340;&#24341;&#29992;&#12290;</li>
</ul>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">&#25104;&#21592;&#31867;&#22411;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td>&#25104;&#21592;&#31867;&#22411;</td>
<td>&#23450;&#20041;</td>
</tr>
<tr class="t-dsc">
<td><code>value_type</code></td>
<td><code>T</code></td>
</tr>
<tr class="t-dsc">
<td><code>allocator_type</code></td>
<td><code>Allocator</code></td>
</tr>
<tr class="t-dsc">
<td><code>size_type</code></td>
<td>&#26080;&#31526;&#21495;&#25972;&#25968;&#31867;&#22411;&#65288;&#36890;&#24120;&#26159; <span class="t-lc"><a href="cpp-types-size_t.html">std::size_t</a></span> &#65289;</td>
</tr>
<tr class="t-dsc">
<td><code>difference_type</code></td>
<td>&#26377;&#31526;&#21495;&#25972;&#25968;&#31867;&#22411;&#65288;&#36890;&#24120;&#26159; <span class="t-lc"><a href="cpp-types-ptrdiff_t.html">std::ptrdiff_t</a></span> &#65289;</td>
</tr>
<tr class="t-dsc">
<td><code>reference</code></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">value_type<span class="sy3">&amp;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><code>const_reference</code></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span> value_type<span class="sy3">&amp;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><code>pointer</code></td>
<td>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx11">
<td><code>Allocator::pointer</code></td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
</tr>
<tr class="t-rev t-since-cxx11">
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-memory-allocator_traits.html"><span class="kw701">std::<span class="me2">allocator_traits</span></span></a><span class="sy1">&lt;</span>Allocator<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">pointer</span></span></span></td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
</tr>
</table>
</td>
</tr>
<tr class="t-dsc">
<td><code>const_pointer</code></td>
<td>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx11">
<td><code>Allocator::const_pointer</code></td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
</tr>
<tr class="t-rev t-since-cxx11">
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-memory-allocator_traits.html"><span class="kw701">std::<span class="me2">allocator_traits</span></span></a><span class="sy1">&lt;</span>Allocator<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">const_pointer</span></span></span></td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
</tr>
</table>
</td>
</tr>
<tr class="t-dsc">
<td><code>iterator</code></td>
<td>&#25351;&#21521; <code>value_type</code> &#30340;<a href="cpp-named_req-RandomAccessIterator.html"><span style="font-style:italic">&#32769;&#24335;&#38543;&#26426;&#35775;&#38382;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyRandomAccessIterator)</span></a></td>
</tr>
<tr class="t-dsc">
<td><code>iterator</code></td>
<td>&#25351;&#21521; <code>value_type</code> &#30340;<a href="cpp-named_req-RandomAccessIterator.html"><span style="font-style:italic">&#32769;&#24335;&#38543;&#26426;&#35775;&#38382;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyRandomAccessIterator)</span></a></td>
</tr>
<tr class="t-dsc">
<td><code>reverse_iterator</code></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-reverse_iterator.html"><span class="kw658">std::<span class="me2">reverse_iterator</span></span></a><span class="sy1">&lt;</span>iterator<span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><code>const_reverse_iterator</code></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-reverse_iterator.html"><span class="kw658">std::<span class="me2">reverse_iterator</span></span></a><span class="sy1">&lt;</span>const_iterator<span class="sy1">&gt;</span></span></span></td>
</tr>
</table>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">&#25104;&#21592;&#20989;&#25968;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div t-dsc-member-nobold-div">
<div><a href="cpp-container-deque-deque.html"><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></a></div>
</div>
</td>
<td>&#26500;&#36896; <code>deque</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-deque-~deque.html"><span class="t-lines"><span>(&#26512;&#26500;&#20989;&#25968;)</span></span></a></div>
</div>
</td>
<td>&#26512;&#26500; <code>deque</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">
<div><a href="cpp-container-deque-operator=.html"><span class="t-lines"><span>operator=</span></span></a></div>
</div>
</td>
<td>&#36171;&#20540;&#32473;&#23481;&#22120;<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-deque-assign.html"><span class="t-lines"><span>assign</span></span></a></div>
</div>
</td>
<td>&#23558;&#20540;&#36171;&#32473;&#23481;&#22120;<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-deque-get_allocator.html"><span class="t-lines"><span>get_allocator</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#30456;&#20851;&#30340;&#20998;&#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>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-at.html"><span class="t-lines"><span>at</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#25351;&#23450;&#30340;&#20803;&#32032;&#65292;&#21516;&#26102;&#36827;&#34892;&#36234;&#30028;&#26816;&#26597;<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-deque-operator_at.html"><span class="t-lines"><span>operator[]</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#25351;&#23450;&#30340;&#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-deque-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-deque-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=".E8.BF.AD.E4.BB.A3.E5.99.A8">&#36845;&#20195;&#22120;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-begin.html"><span class="t-lines"><span>begin</span> <span>cbegin</span></span></a></div>
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36820;&#22238;&#25351;&#21521;&#36215;&#22987;&#30340;&#36845;&#20195;&#22120;<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-deque-end.html"><span class="t-lines"><span>end</span> <span>cend</span></span></a></div>
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36820;&#22238;&#25351;&#21521;&#26411;&#23614;&#30340;&#36845;&#20195;&#22120;<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-deque-rbegin.html"><span class="t-lines"><span>rbegin</span><span>crbegin</span></span></a></div>
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36820;&#22238;&#25351;&#21521;&#36215;&#22987;&#30340;&#36870;&#21521;&#36845;&#20195;&#22120;<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-deque-rend.html"><span class="t-lines"><span>rend</span><span>crend</span></span></a></div>
<div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36820;&#22238;&#25351;&#21521;&#26411;&#23614;&#30340;&#36870;&#21521;&#36845;&#20195;&#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.AE.B9.E9.87.8F">&#23481;&#37327;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-empty.html"><span class="t-lines"><span>empty</span></span></a></div>
</div>
</td>
<td>&#26816;&#26597;&#23481;&#22120;&#26159;&#21542;&#20026;&#31354;<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-deque-size.html"><span class="t-lines"><span>size</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#23481;&#32435;&#30340;&#20803;&#32032;&#25968;<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-deque-max_size.html"><span class="t-lines"><span>max_size</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#21487;&#23481;&#32435;&#30340;&#26368;&#22823;&#20803;&#32032;&#25968;<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-deque-shrink_to_fit.html"><span class="t-lines"><span>shrink_to_fit</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>&#36890;&#36807;&#37322;&#25918;&#26410;&#20351;&#29992;&#30340;&#20869;&#23384;&#20943;&#23569;&#20869;&#23384;&#30340;&#20351;&#29992;<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>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-clear.html"><span class="t-lines"><span>clear</span></span></a></div>
</div>
</td>
<td>&#28165;&#38500;&#20869;&#23481;<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-deque-insert.html"><span class="t-lines"><span>insert</span></span></a></div>
</div>
</td>
<td>&#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-deque-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>&#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-deque-erase.html"><span class="t-lines"><span>erase</span></span></a></div>
</div>
</td>
<td>&#25830;&#38500;&#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-deque-push_back.html"><span class="t-lines"><span>push_back</span></span></a></div>
</div>
</td>
<td>&#23558;&#20803;&#32032;&#28155;&#21152;&#21040;&#23481;&#22120;&#26411;&#23614;<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-deque-emplace_back.html"><span class="t-lines"><span>emplace_back</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;&#23481;&#22120;&#26411;&#23614;&#23601;&#22320;&#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-deque-pop_back.html"><span class="t-lines"><span>pop_back</span></span></a></div>
</div>
</td>
<td>&#31227;&#38500;&#26411;&#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-deque-push_front.html"><span class="t-lines"><span>push_front</span></span></a></div>
</div>
</td>
<td>&#25554;&#20837;&#20803;&#32032;&#21040;&#23481;&#22120;&#36215;&#22987;<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-deque-emplace_front.html"><span class="t-lines"><span>emplace_front</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;&#23481;&#22120;&#22836;&#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-deque-pop_front.html"><span class="t-lines"><span>pop_front</span></span></a></div>
</div>
</td>
<td>&#31227;&#38500;&#39318;&#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-deque-resize.html"><span class="t-lines"><span>resize</span></span></a></div>
</div>
</td>
<td>&#25913;&#21464;&#23481;&#22120;&#20013;&#21487;&#23384;&#20648;&#20803;&#32032;&#30340;&#20010;&#25968;<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-deque-swap.html"><span class="t-lines"><span>swap</span></span></a></div>
</div>
</td>
<td>&#20132;&#25442;&#20869;&#23481;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</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">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-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 class="t-mark-rev t-until-cxx20">(C++20 &#20013;&#31227;&#38500;)</span></span><span><span class="t-mark-rev t-until-cxx20">(C++20 &#20013;&#31227;&#38500;)</span></span><span><span class="t-mark-rev t-until-cxx20">(C++20 &#20013;&#31227;&#38500;)</span></span><span><span class="t-mark-rev t-until-cxx20">(C++20 &#20013;&#31227;&#38500;)</span></span><span><span class="t-mark-rev t-until-cxx20">(C++20 &#20013;&#31227;&#38500;)</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; deque &#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-deque-swap2.html"><span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::deque)</span></span></span></a></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>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-deque-erase2.html"><span class="t-lines"><span>erase<span class="t-dsc-small">(std::deque)</span></span><span>erase_if<span class="t-dsc-small">(std::deque)</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#25830;&#38500;&#25152;&#26377;&#28385;&#36275;&#29305;&#23450;&#21028;&#21035;&#26631;&#20934;&#30340;&#20803;&#32032;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</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-deque-deduction_guides.html">&#25512;&#23548;&#25351;&#24341;</a><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></span></h3>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</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="cpp source-cpp">
<pre class="de1"><span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;deque&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="co1">// &#21019;&#24314;&#23481;&#32435;&#25972;&#25968;&#30340; deque</span>
std<span class="sy4">::</span><span class="me2">deque</span><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> d <span class="sy1">=</span> <span class="br0">{</span><span class="nu0">7</span>, <span class="nu0">5</span>, <span class="nu0">16</span>, <span class="nu0">8</span><span class="br0">}</span><span class="sy4">;</span>
<span class="co1">// &#20174; deque &#30340;&#39318;&#23614;&#28155;&#21152;&#25972;&#25968;</span>
d.<span class="me1">push_front</span><span class="br0">(</span><span class="nu0">13</span><span class="br0">)</span><span class="sy4">;</span>
d.<span class="me1">push_back</span><span class="br0">(</span><span class="nu0">25</span><span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &#36845;&#20195;&#24182;&#25171;&#21360; deque &#30340;&#20540;</span>
<span class="kw1">for</span><span class="br0">(</span><span class="kw4">int</span> n <span class="sy4">:</span> d<span class="br0">)</span> <span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1756">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> n <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span></pre></div>
</div>
<p>&#36755;&#20986;&#65306;</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="text source-text">
<pre class="de1">13
7
5
16
8
25</pre></div>
</div>
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