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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>basic_string</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-string.html">string</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-string.html">&lt;string&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> CharT,<br />
&nbsp; &nbsp; <span class="kw1">class</span> Traits <span class="sy1">=</span> <a href="cpp-string-char_traits.html"><span class="kw1258">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span>CharT<span class="sy1">&gt;</span>,<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>CharT<span class="sy1">&gt;</span><br /></p>
<span class="sy1">&gt;</span> <span class="kw1">class</span> basic_string<span class="sy4">;</span></div>
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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> CharT, <span class="kw1">class</span> Traits <span class="sy1">=</span> <a href="cpp-string-char_traits.html"><span class="kw1258">std::<span class="me2">char_traits</span></span></a><span class="sy1">&lt;</span>CharT<span class="sy1">&gt;&gt;</span><br />
&nbsp; &nbsp; <span class="kw1">using</span> basic_string <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span> CharT, Traits,<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; std<span class="sy4">::</span><span class="me2">polymorphic_allocator</span><span class="sy1">&lt;</span>CharT<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>&#31867;&#27169;&#26495; <code>basic_string</code> &#23384;&#20648;&#24182;&#25805;&#32437;&#20316;&#20026;&#38750;&#25968;&#32452;<a href="cpp-named_req-TrivialType.html">&#24179;&#20961;</a><a href="cpp-named_req-StandardLayoutType.html">&#26631;&#20934;&#24067;&#23616;&#31867;&#22411;</a>&#30340;&#20223; <a href="cpp-language-types.html#.E5.AD.97.E7.AC.A6.E7.B1.BB.E5.9E.8B"><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span></a> &#23545;&#35937;&#24207;&#21015;&#12290;&#35813;&#31867;&#26082;&#19981;&#20381;&#36182;&#23383;&#31526;&#31867;&#22411;&#65292;&#20134;&#19981;&#20381;&#36182;&#35813;&#31867;&#22411;&#19978;&#30340;&#21407;&#29983;&#25805;&#20316;&#12290;&#25805;&#20316;&#30340;&#23450;&#20041;&#36890;&#36807; <code>Traits</code> &#27169;&#26495;&#24418;&#21442;&mdash;&mdash; <span class="t-lc"><a href="cpp-string-char_traits.html">std::char_traits</a></span> &#30340;&#29305;&#21270;&#25110;&#20860;&#23481;&#29305;&#24615;&#31867;&#25552;&#20379;&#12290; <code>Traits::char_type</code> &#21644; <code>CharT</code> &#24517;&#39035;&#25351;&#21517;&#21516;&#19968;&#31867;&#22411;&#65307;&#21542;&#21017;&#31243;&#24207;&#38750;&#33391;&#26500;&#12290;</p>
<p><code>basic_string</code> &#26159;&#30456;&#32487;&#23384;&#20648;&#30340;&#65292;&#21363;&#23545;&#20110; <code>basic_string</code> <code>s</code> &#65292;&#23545;&#20219;&#20309; <code>[0, s.size())</code> &#20013;&#30340; n &#26377; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy3">&amp;</span><span class="sy2">*</span><span class="br0">(</span>s.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy2">+</span> n<span class="br0">)</span> <span class="sy1">==</span> <span class="sy3">&amp;</span><span class="sy2">*</span>s.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy2">+</span> n</span></span> &#65292;&#25110;&#31561;&#20215;&#22320;&#65292;&#25351;&#21521; <code>s[0]</code> &#30340;&#25351;&#38024;&#33021;&#20256;&#36882;&#32473;&#26399;&#24453;&#25351;&#21521;<span class="t-rev-inl t-since-cxx11"><span>&#31354;&#32456;&#27490;</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></span></span> <code>CharT[]</code> &#25968;&#32452;&#39318;&#20803;&#32032;&#25351;&#38024;&#30340;&#20989;&#25968;&#12290;</p>
<p><code>std::basic_string</code> &#28385;&#36275;<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> &#65288;&#38500;&#20102;&#19981;&#29992;&#23450;&#21046;&#30340; <code>construct</code>/<code>destroy</code> &#26500;&#36896;/&#26512;&#26500;&#20803;&#32032;&#65289;&#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> <span class="t-rev-inl t-since-cxx17"><span>&#21450;<a href="cpp-named_req-ContiguousContainer.html"><span style="font-style:italic">&#36830;&#32493;&#23481;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(ContiguousContainer)</span></a></span> <span><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></span></span>&#30340;&#35201;&#27714;&#12290;</p>
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<p><code>std::basic_string</code> &#30340;&#25104;&#21592;&#20989;&#25968;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span></span></span> &#65306;&#21487;&#20197;&#22312;&#24120;&#37327;&#34920;&#36798;&#24335;&#30340;&#27714;&#20540;&#20013;&#21019;&#24314;&#24182;&#20351;&#29992; <code>std::string</code> &#23545;&#35937;&#12290;</p>
<p>&#28982;&#32780;&#65292; <code>std::string</code> &#23545;&#35937;&#36890;&#24120;&#19981;&#33021;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span></span></span> &#65292;&#22240;&#20026;&#20219;&#20309;&#21160;&#24577;&#20998;&#37197;&#30340;&#23384;&#20648;&#37117;&#24517;&#39035;&#22312;&#21516;&#19968;&#24120;&#37327;&#34920;&#36798;&#24335;&#27714;&#20540;&#20869;&#37322;&#25918;&#12290;</p>
</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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</table>
<p>&#25552;&#20379;&#25968;&#20010;&#23545;&#20110;&#24120;&#29992;&#23383;&#31526;&#31867;&#22411;&#30340; typedef &#65306;</p>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-string.html">&lt;string&gt;</a></code></div>
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<tr class="t-dsc-hitem">
<td>&#31867;&#22411;</td>
<td>&#23450;&#20041;</td>
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<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::string</strong></span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span></td>
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<td><span class="t-lc"><strong class="selflink">std::wstring</strong></span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc">std::u8string</span> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span>char8_t<span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::u16string</strong></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::u32string</strong></span> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span></span></span></td>
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<td><span class="t-lc"><strong class="selflink">std::pmr::string</strong></span> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">pmr</span><span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span></td>
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<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::pmr::wstring</strong></span> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">pmr</span><span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc">std::pmr::u8string</span> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">pmr</span><span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span>char8_t<span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::pmr::u16string</strong></span> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">pmr</span><span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span></span></span></td>
</tr>
<tr class="t-dsc">
<td><span class="t-lc"><strong class="selflink">std::pmr::u32string</strong></span> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">pmr</span><span class="sy4">::</span><span class="me2">basic_string</span><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span></span></span></td>
</tr>
</table>
<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>CharT</td>
<td>-</td>
<td>&#23383;&#31526;&#31867;&#22411;</td>
</tr>
<tr class="t-par">
<td>Traits</td>
<td>-</td>
<td>&#25351;&#23450;&#23383;&#31526;&#31867;&#22411;&#19978;&#25805;&#20316;&#30340;&#29305;&#24615;&#31867;</td>
</tr>
<tr class="t-par">
<td>Allocator</td>
<td>-</td>
<td>&#29992;&#20110;&#20998;&#37197;&#20869;&#37096;&#23384;&#20648;&#30340;<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> &#31867;&#22411;</td>
</tr>
</table>
<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>traits_type</code></td>
<td><code>Traits</code></td>
</tr>
<tr class="t-dsc">
<td><code>value_type</code></td>
<td><code>CharT</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>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx11">
<td><code>Allocator::size_type</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">size_type</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>difference_type</code></td>
<td>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx11">
<td><code>Allocator::difference_type</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">difference_type</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>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>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx20">
<td>
<p>&#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> &#21450;<a href="cpp-named_req-ContiguousIterator.html"><span style="font-style:italic">&#32769;&#24335;&#36830;&#32493;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyContiguousIterator)</span></a></p>
</td>
<td><span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
</tr>
<tr class="t-rev t-since-cxx20">
<td>
<p>&#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> &#12289;<a href="cpp-iterator-contiguous_iterator.html"><code>contiguous_iterator</code></a> &#21450;<a href="cpp-named_req-ConstexprIterator.html"><span style="font-style:italic">&#24120;&#37327;&#34920;&#36798;&#24335;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(ConstexprIterator)</span></a></p>
</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
</tr>
</table>
</td>
</tr>
<tr class="t-dsc">
<td><code>const_iterator</code></td>
<td>
<table class="t-rev-begin t-rev-begin-noborder">
<tr class="t-rev t-until-cxx20">
<td>
<p>&#25351;&#21521; <code>const 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> &#21450;<a href="cpp-named_req-ContiguousIterator.html"><span style="font-style:italic">&#32769;&#24335;&#36830;&#32493;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyContiguousIterator)</span></a></p>
</td>
<td><span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
</tr>
<tr class="t-rev t-since-cxx20">
<td>
<p>&#25351;&#21521; <code>const 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> &#12289;<a href="cpp-iterator-contiguous_iterator.html"><code>contiguous_iterator</code></a> &#21450;<a href="cpp-named_req-ConstexprIterator.html"><span style="font-style:italic">&#24120;&#37327;&#34920;&#36798;&#24335;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(ConstexprIterator)</span></a></p>
</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
</tr>
</table>
</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-string-basic_string-basic_string.html"><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></a></div>
</div>
</td>
<td>&#26500;&#36896; <code>basic_string</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><span class="t-lines"><span>(&#26512;&#26500;&#20989;&#25968;)</span></span></div>
</div>
</td>
<td>&#38144;&#27585;&#23383;&#31526;&#20018;&#65292;&#33509;&#20351;&#29992;&#20869;&#37096;&#23384;&#20648;&#21017;&#35299;&#20998;&#37197;&#23427;<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-string-basic_string-operator=.html"><span class="t-lines"><span>operator=</span></span></a></div>
</div>
</td>
<td>&#20026;&#23383;&#31526;&#20018;&#36171;&#20540;<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-string-basic_string-assign.html"><span class="t-lines"><span>assign</span></span></a></div>
</div>
</td>
<td>&#36171;&#20540;&#23383;&#31526;&#32473;&#23383;&#31526;&#20018;<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-string-basic_string-get_allocator.html"><span class="t-lines"><span>get_allocator</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#20851;&#32852;&#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-string-basic_string-at.html"><span class="t-lines"><span>at</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#25351;&#23450;&#23383;&#31526;&#65292;&#26377;&#36793;&#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-string-basic_string-operator_at.html"><span class="t-lines"><span>operator[]</span></span></a></div>
</div>
</td>
<td>&#35775;&#38382;&#25351;&#23450;&#23383;&#31526;<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-string-basic_string-front.html"><span class="t-lines"><span>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>&#35775;&#38382;&#39318;&#23383;&#31526;<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-string-basic_string-back.html"><span class="t-lines"><span>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>&#35775;&#38382;&#26368;&#21518;&#30340;&#23383;&#31526;<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-string-basic_string-data.html"><span class="t-lines"><span>data</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#25351;&#21521;&#23383;&#31526;&#20018;&#39318;&#23383;&#31526;&#30340;&#25351;&#38024;<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-string-basic_string-c_str.html"><span class="t-lines"><span>c_str</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#23383;&#31526;&#20018;&#30340;&#19981;&#21487;&#20462;&#25913;&#30340; C &#23383;&#31526;&#25968;&#32452;&#29256;&#26412;<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-string-basic_string-operator_basic_string_view.html"><span class="t-lines"><span>operator basic_string_view</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div>
</div>
</td>
<td>&#36820;&#22238;&#21040;&#25972;&#20010;&#23383;&#31526;&#20018;&#30340;&#19981;&#21487;&#20462;&#25913;&#30340; <code>basic_string_view</code><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-string-basic_string-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-string-basic_string-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-string-basic_string-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-string-basic_string-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-string-basic_string-empty.html"><span class="t-lines"><span>empty</span></span></a></div>
</div>
</td>
<td>&#26816;&#26597;&#23383;&#31526;&#20018;&#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-string-basic_string-size.html"><span class="t-lines"><span>size</span><span>length</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#23383;&#31526;&#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-string-basic_string-max_size.html"><span class="t-lines"><span>max_size</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#23383;&#31526;&#25968;&#30340;&#26368;&#22823;&#20540;<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-string-basic_string-reserve.html"><span class="t-lines"><span>reserve</span></span></a></div>
</div>
</td>
<td>&#20445;&#30041;&#23384;&#20648;<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-string-basic_string-capacity.html"><span class="t-lines"><span>capacity</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#24403;&#21069;&#23545;&#35937;&#20998;&#37197;&#30340;&#23384;&#20648;&#31354;&#38388;&#33021;&#20445;&#23384;&#30340;&#23383;&#31526;&#25968;&#37327;<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-string-basic_string-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;&#19981;&#20351;&#29992;&#20869;&#23384;&#20943;&#23569;&#20869;&#23384;&#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=".E6.93.8D.E4.BD.9C">&#25805;&#20316;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-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-string-basic_string-insert.html"><span class="t-lines"><span>insert</span></span></a></div>
</div>
</td>
<td>&#25554;&#20837;&#23383;&#31526;<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-string-basic_string-erase.html"><span class="t-lines"><span>erase</span></span></a></div>
</div>
</td>
<td>&#31227;&#38500;&#23383;&#31526;<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-string-basic_string-push_back.html"><span class="t-lines"><span>push_back</span></span></a></div>
</div>
</td>
<td>&#21518;&#38468;&#23383;&#31526;&#21040;&#32467;&#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-string-basic_string-pop_back.html"><span class="t-lines"><span>pop_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>&#31227;&#38500;&#26411;&#23614;&#23383;&#31526;<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-string-basic_string-append.html"><span class="t-lines"><span>append</span></span></a></div>
</div>
</td>
<td>&#21518;&#38468;&#23383;&#31526;&#21040;&#32467;&#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-string-basic_string-operator+=.html"><span class="t-lines"><span>operator+=</span></span></a></div>
</div>
</td>
<td>&#21518;&#38468;&#23383;&#31526;&#21040;&#32467;&#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-string-basic_string-compare.html"><span class="t-lines"><span>compare</span></span></a></div>
</div>
</td>
<td>&#27604;&#36739;&#20108;&#20010;&#23383;&#31526;&#20018;<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-string-basic_string-starts_with.html"><span class="t-lines"><span>starts_with</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>&#26816;&#26597; string &#26159;&#21542;&#22987;&#20110;&#32473;&#23450;&#21069;&#32512;<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-string-basic_string-ends_with.html"><span class="t-lines"><span>ends_with</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>&#26816;&#26597; string &#26159;&#21542;&#32456;&#20110;&#32473;&#23450;&#21518;&#32512;<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-string-basic_string-contains.html"><span class="t-lines"><span>contains</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx23">(C++23)</span></span></span></div>
</div>
</td>
<td>&#26816;&#26597;&#23383;&#31526;&#20018;&#26159;&#21542;&#21547;&#26377;&#32473;&#23450;&#30340;&#23376;&#20018;&#25110;&#23383;&#31526;<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-string-basic_string-replace.html"><span class="t-lines"><span>replace</span></span></a></div>
</div>
</td>
<td>&#26367;&#25442;&#23383;&#31526;&#20018;&#30340;&#25351;&#23450;&#37096;&#20998;<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-string-basic_string-substr.html"><span class="t-lines"><span>substr</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#23376;&#20018;<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-string-basic_string-copy.html"><span class="t-lines"><span>copy</span></span></a></div>
</div>
</td>
<td>&#22797;&#21046;&#23383;&#31526;<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-string-basic_string-resize.html"><span class="t-lines"><span>resize</span></span></a></div>
</div>
</td>
<td>&#26356;&#25913;&#23384;&#20648;&#30340;&#23383;&#31526;&#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-string-basic_string-resize_and_overwrite.html"><span class="t-lines"><span>resize_and_overwrite</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx23">(C++23)</span></span></span></div>
</div>
</td>
<td>&#26356;&#25913;&#23384;&#20648;&#30340;&#23383;&#31526;&#25968;&#24182;&#21487;&#33021;&#32463;&#30001;&#29992;&#25143;&#25552;&#20379;&#30340;&#25805;&#20316;&#37325;&#20889;&#19981;&#30830;&#23450;&#30340;&#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-string-basic_string-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>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E6.9F.A5.E6.89.BE">&#26597;&#25214;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-find.html"><span class="t-lines"><span>find</span></span></a></div>
</div>
</td>
<td>&#20110;&#23383;&#31526;&#20018;&#20013;&#23547;&#25214;&#23383;&#31526;<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-string-basic_string-rfind.html"><span class="t-lines"><span>rfind</span></span></a></div>
</div>
</td>
<td>&#23547;&#25214;&#23376;&#20018;&#30340;&#26368;&#21518;&#19968;&#27425;&#20986;&#29616;<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-string-basic_string-find_first_of.html"><span class="t-lines"><span>find_first_of</span></span></a></div>
</div>
</td>
<td>&#23547;&#25214;&#23383;&#31526;&#30340;&#39318;&#27425;&#20986;&#29616;<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-string-basic_string-find_first_not_of.html"><span class="t-lines"><span>find_first_not_of</span></span></a></div>
</div>
</td>
<td>&#23547;&#25214;&#23383;&#31526;&#30340;&#39318;&#27425;&#32570;&#22833;<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-string-basic_string-find_last_of.html"><span class="t-lines"><span>find_last_of</span></span></a></div>
</div>
</td>
<td>&#23547;&#25214;&#23383;&#31526;&#30340;&#26368;&#21518;&#19968;&#27425;&#20986;&#29616;<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-string-basic_string-find_last_not_of.html"><span class="t-lines"><span>find_last_not_of</span></span></a></div>
</div>
</td>
<td>&#23547;&#25214;&#23383;&#31526;&#30340;&#26368;&#21518;&#19968;&#27425;&#32570;&#22833;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr>
<td colspan="2">
<h3><span class="mw-headline" id=".E5.B8.B8.E9.87.8F">&#24120;&#37327;</span></h3>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-npos.html"><span class="t-lines"><span>npos</span></span></a></div>
<div><span class="t-lines"><span><span class="t-cmark">[&#38745;&#24577;]</span></span></span></div>
</div>
</td>
<td>&#29305;&#27530;&#20540;&#12290;&#20934;&#30830;&#21547;&#20041;&#20381;&#36182;&#35821;&#22659;<br />
<span class="t-mark">(&#20844;&#24320;&#38745;&#24577;&#25104;&#21592;&#24120;&#37327;)</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-string-basic_string-operator+.html"><span class="t-lines"><span>operator+</span></span></a></div>
</div>
</td>
<td>&#36830;&#25509;&#20004;&#20010;&#23383;&#31526;&#20018;&#25110;&#32773;&#19968;&#20010;&#23383;&#31526;&#20018;&#21644;&#19968;&#20010;&#23383;&#31526;<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-string-basic_string-operator_cmp.html"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&gt;</span><span>operator&lt;=</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>&#20197;&#23383;&#20856;&#24207;&#27604;&#36739;&#20004;&#20010;&#23383;&#31526;&#20018;<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-string-basic_string-swap2.html"><span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::basic_string)</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-string-basic_string-erase2.html"><span class="t-lines"><span>erase<span class="t-dsc-small">(std::basic_string)</span></span><span>erase_if<span class="t-dsc-small">(std::basic_string)</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>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E8.BE.93.E5.85.A5.2F.E8.BE.93.E5.87.BA">&#36755;&#20837;/&#36755;&#20986;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-operator_ltltgtgt.html"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span></span></a></div>
</div>
</td>
<td>&#25191;&#34892;&#23383;&#31526;&#20018;&#30340;&#27969;&#36755;&#20837;&#19982;&#36755;&#20986;<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-string-basic_string-getline.html"><span class="t-lines"><span>getline</span></span></a></div>
</div>
</td>
<td>&#20174; I/O &#27969;&#35835;&#21462;&#25968;&#25454;&#21040;&#23383;&#31526;&#20018;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
</tr>
<tr>
<td colspan="2">
<h5><span class="mw-headline" id=".E6.95.B0.E5.80.BC.E8.BD.AC.E6.8D.A2">&#25968;&#20540;&#36716;&#25442;</span></h5>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-stol.html"><span class="t-lines"><span>stoi</span><span>stol</span><span>stoll</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36716;&#25442;&#23383;&#31526;&#20018;&#20026;&#26377;&#31526;&#21495;&#25972;&#25968;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-stoul.html"><span class="t-lines"><span>stoul</span><span>stoull</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36716;&#25442;&#23383;&#31526;&#20018;&#20026;&#26080;&#31526;&#21495;&#25972;&#25968;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-stof.html"><span class="t-lines"><span>stof</span><span>stod</span><span>stold</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>&#36716;&#25442;&#23383;&#31526;&#20018;&#20026;&#28014;&#28857;&#20540;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-to_string.html"><span class="t-lines"><span>to_string</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>&#36716;&#25442;&#25972;&#25968;&#25110;&#28014;&#28857;&#20540;&#20026; <code>string</code><br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-to_wstring.html"><span class="t-lines"><span>to_wstring</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>&#36716;&#25442;&#25972;&#25968;&#25110;&#28014;&#28857;&#20540;&#20026; <code>wstring</code><br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
</table>
<h3><span class="mw-headline" id=".E5.AD.97.E9.9D.A2.E9.87.8F">&#23383;&#38754;&#37327;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2">
<div>&#23450;&#20041;&#20110;&#20869;&#32852;&#21629;&#21517;&#31354;&#38388; <code>std::literals::string_literals</code></div>
</td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-string-basic_string-operator_22_22s.html"><span class="t-lines"><span>operator&quot;&quot;s</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div>
</div>
</td>
<td>&#36716;&#25442;&#23383;&#31526;&#25968;&#32452;&#23383;&#38754;&#37327;&#20026; <code>basic_string</code><br />
<span class="t-mark">(&#20989;&#25968;)</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-string-basic_string-hash.html"><span class="t-lines"><span>std::hash<span class="t-dsc-small">&lt;std::string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::u8string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::u16string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::u32string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::wstring&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::pmr::string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::pmr::u8string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::pmr::u16string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::pmr::u32string&gt;</span></span><span>std::hash<span class="t-dsc-small">&lt;std::pmr::wstring&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><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div>
</div>
</td>
<td>string &#30340;&#25955;&#21015;&#25903;&#25345;<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-string-basic_string-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=".E6.B3.A8.E8.A7.A3">&#27880;&#35299;</span></h3>
<p>&#23613;&#31649;&#22312; C++23 &#21069;&#35201;&#27714;&#22312;&#26500;&#36896;&#25110;&#38144;&#27585; <code>std::basic_string</code> &#30340;&#20803;&#32032;&#26102;&#20351;&#29992;&#23450;&#21046;&#30340; <code>construct</code> &#25110; <code>destroy</code>&#65292;&#25152;&#26377;&#23454;&#29616;&#37117;&#20351;&#29992;&#40664;&#35748;&#26426;&#21046;&#12290;<a rel="nofollow" class="external text" href="https://wg21.link/P1072R10">P1072R10</a> &#26356;&#27491;&#20102;&#35813;&#35201;&#27714;&#20197;&#21305;&#37197;&#26082;&#23384;&#23454;&#29616;&#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;string&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw1">using</span> <span class="kw1">namespace</span> std<span class="sy4">::</span><span class="me2">literals</span><span class="sy4">;</span>
<span class="co1">// &#20174; const char* &#21019;&#24314; string</span>
std<span class="sy4">::</span><span class="me2">string</span> str1 <span class="sy1">=</span> <span class="st0">&quot;hello&quot;</span><span class="sy4">;</span>
<span class="co1">// &#20174;&#23383;&#31526;&#20018;&#23383;&#38754;&#37327;&#21019;&#24314; string</span>
<span class="kw4">auto</span> str2 <span class="sy1">=</span> <span class="st0">&quot;world&quot;</span>s<span class="sy4">;</span>
<span class="co1">// &#36830;&#25509; string</span>
std<span class="sy4">::</span><span class="me2">string</span> str3 <span class="sy1">=</span> str1 <span class="sy2">+</span> <span class="st0">&quot; &quot;</span> <span class="sy2">+</span> str2<span class="sy4">;</span>
<span class="co1">// &#25171;&#21360;&#32467;&#26524;</span>
<a href="cpp-io-cout.html"><span class="kw1749">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> str3 <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">string</span><span class="sy4">::</span><span class="me2">size_type</span> pos <span class="sy1">=</span> str3.<span class="me1">find</span><span class="br0">(</span><span class="st0">&quot; &quot;</span><span class="br0">)</span><span class="sy4">;</span>
str1 <span class="sy1">=</span> str3.<span class="me1">substr</span><span class="br0">(</span>pos <span class="sy2">+</span> <span class="nu0">1</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// the part after the space</span>
str2 <span class="sy1">=</span> str3.<span class="me1">substr</span><span class="br0">(</span><span class="nu0">0</span>, pos<span class="br0">)</span><span class="sy4">;</span> <span class="co1">// the part till the space</span>
<a href="cpp-io-cout.html"><span class="kw1749">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> str1 <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span> <span class="sy1">&lt;&lt;</span> str2 <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="co1">// &#29992;&#19979;&#26631;&#36816;&#31639;&#31526; operator[] &#35775;&#38382;&#20803;&#32032;</span>
<a href="cpp-io-cout.html"><span class="kw1749">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> str1<span class="br0">[</span><span class="nu0">0</span><span class="br0">]</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
str1<span class="br0">[</span><span class="nu0">0</span><span class="br0">]</span> <span class="sy1">=</span> <span class="st0">&#39;W&#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1749">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> str1 <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></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">hello world
world hello
w
World</pre></div>
</div>
</div>
</div>
<div class="visualClear"></div>
</div>
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