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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::vector&lt;T,Allocator&gt;::</span>insert</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>&lrm; | <a href="cpp-container-vector.html">vector</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">(</span> iterator pos, <span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">(</span> const_iterator pos, <span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> iterator insert<span class="br0">(</span> const_iterator pos, <span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<td rowspan="142">(2)</td>
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<div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">(</span> const_iterator pos, T<span class="sy3">&amp;&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> iterator insert<span class="br0">(</span> const_iterator pos, T<span class="sy3">&amp;&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">void</span> insert<span class="br0">(</span> iterator pos, size_type count, <span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">(</span> const_iterator pos, size_type count, <span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> iterator insert<span class="br0">(</span> const_iterator pos, size_type count,<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="kw4">const</span> T<span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> InputIt <span class="sy1">&gt;</span><br />
<span class="kw4">void</span> insert<span class="br0">(</span> iterator pos, InputIt first, InputIt last<span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> InputIt <span class="sy1">&gt;</span><br />
iterator insert<span class="br0">(</span> const_iterator pos, InputIt first, InputIt last <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
<span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> InputIt <span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> iterator insert<span class="br0">(</span> const_iterator pos, InputIt first, InputIt last <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td rowspan="142">(5)</td>
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<div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">(</span> const_iterator pos, <a href="cpp-utility-initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> ilist <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
<span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> iterator insert<span class="br0">(</span> const_iterator pos,<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<a href="cpp-utility-initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> ilist <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<p>&#25554;&#20837;&#20803;&#32032;&#21040;&#23481;&#22120;&#20013;&#30340;&#25351;&#23450;&#20301;&#32622;&#12290;</p>
<div class="t-li1"><span class="t-li">1-2)</span> &#22312; <code>pos</code> &#21069;&#25554;&#20837; <code>value</code> &#12290;</div>
<div class="t-li1"><span class="t-li">3)</span> &#22312; <code>pos</code> &#21069;&#25554;&#20837; <code>value</code> &#30340; <code>count</code> &#20010;&#21103;&#26412;&#12290;</div>
<div class="t-li1"><span class="t-li">4)</span> &#22312; <code>pos</code> &#21069;&#25554;&#20837;&#26469;&#33258;&#33539;&#22260; <code>[first, last)</code> &#30340;&#20803;&#32032;&#12290;
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<p>&#33509; <code>InputIt</code> &#20026;&#25972;&#25968;&#31867;&#22411;&#65292;&#21017;&#27492;&#37325;&#36733;&#19982;&#37325;&#36733; <span class="t-v">(3)</span> &#25317;&#26377;&#30456;&#21516;&#25928;&#26524;&#12290;</p>
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<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<p>&#27492;&#37325;&#36733;&#20165;&#33509; <code>InputIt</code> &#36275;&#20197;&#20026;<a href="cpp-named_req-InputIterator.html"><span style="font-style:italic">&#32769;&#24335;&#36755;&#20837;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyInputIterator)</span></a> &#25165;&#21442;&#19982;&#37325;&#36733;&#20915;&#35758;&#65292;&#20197;&#36991;&#20813;&#19982;&#37325;&#36733; <span class="t-v">(3)</span> &#26377;&#27495;&#20041;&#12290;</p>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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&#33509; <code>first</code> &#21644; <code>last</code> &#26159;&#25351;&#21521; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span> &#20013;&#30340;&#36845;&#20195;&#22120;&#65292;&#21017;&#34892;&#20026;&#26410;&#23450;&#20041;&#12290;</div>
<div class="t-li1"><span class="t-li">5)</span> &#22312; <code>pos</code> &#21069;&#25554;&#20837;&#26469;&#33258; initializer_list <code>ilist</code> &#30340;&#20803;&#32032;&#12290;</div>
<p>&#33509;&#26032; <span class="t-lc"><a href="cpp-container-vector-size.html">size()</a></span> &#22823;&#20110;&#26087; <span class="t-lc"><a href="cpp-container-vector-capacity.html">capacity()</a></span> &#21017;&#23548;&#33268;&#37325;&#20998;&#37197;&#12290; &#33509;&#26032;&#30340; <span class="t-lc"><a href="cpp-container-vector-size.html">size()</a></span> &#22823;&#20110; <span class="t-lc"><a href="cpp-container-vector-capacity.html">capacity()</a></span> &#65292;&#21017;&#25152;&#26377;&#36845;&#20195;&#22120;&#21644;&#24341;&#29992;&#37117;&#34987;&#38750;&#27861;&#21270;&#12290;&#21542;&#21017;&#65292;&#20165;&#22312;&#25554;&#20837;&#28857;&#21069;&#30340;&#36845;&#20195;&#22120;&#21644;&#24341;&#29992;&#20445;&#25345;&#21512;&#27861;&#12290;&#23614;&#21518;&#36845;&#20195;&#22120;&#20134;&#34987;&#38750;&#27861;&#21270;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
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<td>pos</td>
<td>-</td>
<td>&#23558;&#20869;&#23481;&#25554;&#20837;&#21040;&#20854;&#21069;&#30340;&#36845;&#20195;&#22120;&#12290; <code>pos</code> &#21487;&#20026; <span class="t-lc"><a href="cpp-container-vector-end.html">end()</a></span> &#36845;&#20195;&#22120;</td>
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<td>value</td>
<td>-</td>
<td>&#35201;&#25554;&#20837;&#30340;&#20803;&#32032;&#20540;</td>
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<td>first, last</td>
<td>-</td>
<td>&#35201;&#25554;&#20837;&#30340;&#20803;&#32032;&#33539;&#22260;&#65292;&#19981;&#33021;&#26159;&#25351;&#21521;&#35843;&#29992; insert &#25152;&#29992;&#30340;&#23481;&#22120;&#20013;&#30340;&#36845;&#20195;&#22120;</td>
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<td>ilist</td>
<td>-</td>
<td>&#35201;&#25554;&#20837;&#30340;&#20540;&#26469;&#28304;&#30340; initializer_list</td>
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<td colspan="3">&#31867;&#22411;&#35201;&#27714;</td>
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<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (1) &#65292; <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-CopyInsertable.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyInsertable)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (2) &#65292; <code>T</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-MoveAssignable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveAssignable)</span></a> &#21644; <a href="cpp-named_req-MoveInsertable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveInsertable)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
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<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (3) &#65292; <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-CopyInsertable.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyInsertable)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (4,5) &#65292; <code>T</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-EmplaceConstructible.html"><span style="font-style:italic">&#21487;&#23601;&#20301;&#26500;&#36896;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(EmplaceConstructible)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (4) &#65292; <code>T</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-MoveAssignable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveAssignable)</span></a> &#21644; <a href="cpp-named_req-MoveInsertable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveInsertable)</span></a> &#30340;&#35201;&#27714;&#12290;&#20165;&#33509; <code>InputIt</code> &#28385;&#36275;<a href="cpp-named_req-InputIterator.html"><span style="font-style:italic">&#32769;&#24335;&#36755;&#20837;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyInputIterator)</span></a> &#20294;&#19981;&#28385;&#36275;<a href="cpp-named_req-ForwardIterator.html"><span style="font-style:italic">&#32769;&#24335;&#21521;&#21069;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyForwardIterator)</span></a> &#25165;&#35201;&#27714;&#12290;<span class="t-mark-rev t-until-cxx17">(C++17 &#21069;)</span></td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#20026;&#20351;&#29992;&#37325;&#36733; (4,5) &#65292; <code>T</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-Swappable.html"><span style="font-style:italic">&#21487;&#20132;&#25442;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(Swappable)</span></a> &#12289; <a href="cpp-named_req-MoveAssignable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveAssignable)</span></a> &#12289; <a href="cpp-named_req-MoveConstructible.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#26500;&#36896;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveConstructible)</span></a> &#21644; <a href="cpp-named_req-MoveInsertable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveInsertable)</span></a> &#30340;&#35201;&#27714;&#12290;<span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<div class="t-li1"><span class="t-li">1-2)</span> &#25351;&#21521;&#34987;&#25554;&#20837; <code>value</code> &#30340;&#36845;&#20195;&#22120;&#12290;</div>
<div class="t-li1"><span class="t-li">3)</span> &#25351;&#21521;&#39318;&#20010;&#34987;&#25554;&#20837;&#20803;&#32032;&#30340;&#36845;&#20195;&#22120;&#65292;&#25110;&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp">count<span class="sy1">==</span><span class="nu0">0</span></span></span> &#21017;&#20026; <code>pos</code> &#12290;</div>
<div class="t-li1"><span class="t-li">4)</span> &#25351;&#21521;&#39318;&#20010;&#34987;&#25554;&#20837;&#20803;&#32032;&#30340;&#36845;&#20195;&#22120;&#65292;&#25110;&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp">first<span class="sy1">==</span>last</span></span> &#21017;&#20026; <code>pos</code> &#12290;</div>
<div class="t-li1"><span class="t-li">5)</span> &#25351;&#21521;&#39318;&#20010;&#34987;&#25554;&#20837;&#20803;&#32032;&#30340;&#36845;&#20195;&#22120;&#65292;&#25110;&#33509; <code>ilist</code> &#20026;&#31354;&#21017;&#20026; <code>pos</code> &#12290;</div>
<h3><span class="mw-headline" id=".E5.A4.8D.E6.9D.82.E5.BA.A6">&#22797;&#26434;&#24230;</span></h3>
<div class="t-li1"><span class="t-li">1-2)</span> &#24120;&#25968;&#65292;&#21152;&#19978; <code>pos</code> &#19982;&#23481;&#22120;&#32467;&#23614;&#30340;&#36317;&#31163;&#25104;&#32447;&#24615;&#12290;</div>
<div class="t-li1"><span class="t-li">3)</span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp">count</span></span> &#25104;&#32447;&#24615;&#65292;&#21152;&#19978; <code>pos</code> &#19982;&#23481;&#22120;&#32467;&#23614;&#30340;&#36317;&#31163;&#25104;&#32447;&#24615;&#12290;</div>
<div class="t-li1"><span class="t-li">4)</span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-distance.html"><span class="kw673">std::<span class="me2">distance</span></span></a><span class="br0">(</span>first, last<span class="br0">)</span></span></span> &#25104;&#32447;&#24615;&#65292;&#21152;&#19978; <code>pos</code> &#19982;&#23481;&#22120;&#32467;&#23614;&#30340;&#36317;&#31163;&#25104;&#32447;&#24615;&#12290;</div>
<div class="t-li1"><span class="t-li">5)</span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp">ilist.<span class="me1">size</span><span class="br0">(</span><span class="br0">)</span></span></span> &#25104;&#32447;&#24615;&#65292;&#21152;&#19978; <code>pos</code> &#19982;&#23481;&#22120;&#32467;&#23614;&#30340;&#36317;&#31163;&#25104;&#32447;&#24615;&#12290;</div>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<p>&#33509;&#22312;&#23614;&#31471;&#25554;&#20837;&#21333;&#20010;&#20803;&#32032;&#26102;&#25243;&#20986;&#24322;&#24120;&#65292;&#19988; T &#20026;<a href="cpp-named_req-CopyInsertable.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#25554;&#20837;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyInsertable)</span></a> &#25110; <span class="t-lc">std::is_nothrow_move_constructible&lt;T&gt;::value</span> &#20026; <span class="t-lc">true</span> &#65292;&#21017;&#26080;&#25928;&#26524;&#65288;&#24378;&#24322;&#24120;&#20445;&#35777;&#65289;&#12290;</p>
<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;vector&gt;</span>
<span class="kw4">void</span> print_vec<span class="br0">(</span><span class="kw4">const</span> <a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span><span class="sy3">&amp;</span> vec<span class="br0">)</span>
<span class="br0">{</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> x<span class="sy4">:</span> vec<span class="br0">)</span> <span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span> <span class="sy1">&lt;&lt;</span> x<span class="sy4">;</span>
<span class="br0">}</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <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="kw4">int</span> main <span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> vec<span class="br0">(</span><span class="nu0">3</span>,<span class="nu0">100</span><span class="br0">)</span><span class="sy4">;</span>
print_vec<span class="br0">(</span>vec<span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">auto</span> it <span class="sy1">=</span> vec.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
it <span class="sy1">=</span> vec.<span class="me1">insert</span><span class="br0">(</span>it, <span class="nu0">200</span><span class="br0">)</span><span class="sy4">;</span>
print_vec<span class="br0">(</span>vec<span class="br0">)</span><span class="sy4">;</span>
vec.<span class="me1">insert</span><span class="br0">(</span>it,<span class="nu0">2</span>,<span class="nu0">300</span><span class="br0">)</span><span class="sy4">;</span>
print_vec<span class="br0">(</span>vec<span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &quot;it&quot; &#19981;&#20877;&#21512;&#27861;&#65292;&#33719;&#21462;&#26032;&#20540;&#65306;</span>
it <span class="sy1">=</span> vec.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> vec2<span class="br0">(</span><span class="nu0">2</span>,<span class="nu0">400</span><span class="br0">)</span><span class="sy4">;</span>
vec.<span class="me1">insert</span><span class="br0">(</span>it<span class="sy2">+</span><span class="nu0">2</span>, vec2.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, vec2.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
print_vec<span class="br0">(</span>vec<span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">int</span> arr<span class="br0">[</span><span class="br0">]</span> <span class="sy1">=</span> <span class="br0">{</span> <span class="nu0">501</span>,<span class="nu0">502</span>,<span class="nu0">503</span> <span class="br0">}</span><span class="sy4">;</span>
vec.<span class="me1">insert</span><span class="br0">(</span>vec.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, arr, arr<span class="sy2">+</span><span class="nu0">3</span><span class="br0">)</span><span class="sy4">;</span>
print_vec<span class="br0">(</span>vec<span class="br0">)</span><span class="sy4">;</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">100 100 100
200 100 100 100
300 300 200 100 100 100
300 300 400 400 200 100 100 100
501 502 503 300 300 400 400 200 100 100 100</pre></div>
</div>
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-vector-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-vector-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>
</table>
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