klarkxy/hustoj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
c33c28794d7656d0e1daa2bf81e55af2cfd532f9
hustoj/web/cppreference-zh/chmhelp/cpp-io-basic_istream-operator_gtgt.html
klarkxy 196e706fe4 上传cppreference
2025-08-01 12:57:54 +08:00

316 lines
25 KiB
HTML
Raw Blame History

<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>std::basic_istream&lt;CharT,Traits&gt;::operator&gt;&gt;</title>
<link rel="stylesheet" href="ext.css" />
<link rel="stylesheet" href="site_modules.css" />
</head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_io_basic_istream_operator_gtgt skin-cppreference2 action-view cpp-navbar">
<div id="cpp-content-base">
<div id="content"><a id="top"></a>
<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::basic_istream&lt;CharT,Traits&gt;::</span>operator&gt;&gt;</h1>
<div id="bodyContent">
<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-io.html">io</a>&lrm; | <a href="cpp-io-basic_istream.html">basic istream</a></span></div>
<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
<table class="t-dcl-begin">
<tbody>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">short</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br />
basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">unsigned</span> <span class="kw4">short</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(1)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">int</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br />
basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">unsigned</span> <span class="kw4">int</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(2)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">long</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br />
basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">unsigned</span> <span class="kw4">long</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(3)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br />
basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(4)</td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">float</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br /></span>
<p>basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">double</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span><br /></p>
basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">long</span> <span class="kw4">double</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(5)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">bool</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(6)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <span class="kw4">void</span><span class="sy2">*</span><span class="sy3">&amp;</span> value <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(7)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <a href="cpp-io-ios_base.html"><span class="kw1669">std::<span class="me2">ios_base</span></span></a><span class="sy3">&amp;</span> <span class="br0">(</span><span class="sy2">*</span>func<span class="br0">)</span><span class="br0">(</span><a href="cpp-io-ios_base.html"><span class="kw1669">std::<span class="me2">ios_base</span></span></a><span class="sy3">&amp;</span><span class="br0">)</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(8)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <a href="cpp-io-basic_ios.html"><span class="kw1712">std::<span class="me2">basic_ios</span></span></a><span class="sy1">&lt;</span>CharT,Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="br0">(</span><span class="sy2">*</span>func<span class="br0">)</span><span class="br0">(</span><a href="cpp-io-basic_ios.html"><span class="kw1712">std::<span class="me2">basic_ios</span></span></a><span class="sy1">&lt;</span>CharT,Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(9)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> basic_istream<span class="sy3">&amp;</span> <span class="br0">(</span><span class="sy2">*</span>func<span class="br0">)</span><span class="br0">(</span>basic_istream<span class="sy3">&amp;</span><span class="br0">)</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(10)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl">
<td>
<div><span class="mw-geshi cpp source-cpp">basic_istream<span class="sy3">&amp;</span> operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span> <a href="cpp-io-basic_streambuf.html"><span class="kw1666">std::<span class="me2">basic_streambuf</span></span></a><span class="sy1">&lt;</span>CharT,Traits<span class="sy1">&gt;</span><span class="sy2">*</span> sb <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(11)</td>
<td class="t-dcl-nopad"></td>
</tr>
<tr class="t-dcl-sep">
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>&#20174;&#36755;&#20837;&#27969;&#25552;&#21462;&#20540;&#12290;</p>
<div class="t-li1"><span class="t-li">1-4)</span> &#25552;&#21462;&#25972;&#25968;&#20540;&#65292;&#28508;&#22312;&#22320;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#12290;&#23384;&#20648;&#20540;&#21040;&#32473;&#23450;&#30340;&#24341;&#29992; <code>value</code> &#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#27492;&#20989;&#25968;&#34920;&#29616;&#20026;<a href="cpp-named_req-FormattedInputFunction.html"><span style="font-style:italic">&#26377;&#26684;&#24335;&#36755;&#20837;&#20989;&#25968;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(FormattedInputFunction)</span></a> &#12290;&#26500;&#36896;&#24182;&#26816;&#26597; sentry &#23545;&#35937;&#65292;&#21487;&#33021;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#21518;&#65292;&#36890;&#36807;&#35843;&#29992; <a href="cpp-locale-num_get-get.html"><tt>std::num_get::get()</tt></a> &#25552;&#21462;&#25972;&#25968;&#20540;&#12290;</div>
<div class="t-li1"><span class="t-li">5)</span> &#25552;&#21462;&#28014;&#28857;&#20540;&#65292;&#28508;&#22312;&#22320;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#12290;&#23384;&#20648;&#20540;&#21040;&#32473;&#23450;&#30340;&#24341;&#29992; <code>value</code> &#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#27492;&#20989;&#25968;&#34920;&#29616;&#20026;<a href="cpp-named_req-FormattedInputFunction.html"><span style="font-style:italic">&#26377;&#26684;&#24335;&#36755;&#20837;&#20989;&#25968;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(FormattedInputFunction)</span></a> &#12290;&#26500;&#36896;&#24182;&#26816;&#26597; sentry &#23545;&#35937;&#65292;&#21487;&#33021;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#21518;&#65292;&#36890;&#36807;&#35843;&#29992; <a href="cpp-locale-num_get-get.html"><tt>std::num_get::get()</tt></a> &#25552;&#21462;&#28014;&#28857;&#20540;&#12290;</div>
<div class="t-li1"><span class="t-li">6)</span> &#25552;&#21462;&#24067;&#23572;&#20540;&#65292;&#28508;&#22312;&#22320;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#12290;&#23384;&#20648;&#20540;&#21040;&#32473;&#23450;&#30340;&#24341;&#29992; <code>value</code> &#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#27492;&#20989;&#25968;&#34920;&#29616;&#20026;<a href="cpp-named_req-FormattedInputFunction.html"><span style="font-style:italic">&#26377;&#26684;&#24335;&#36755;&#20837;&#20989;&#25968;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(FormattedInputFunction)</span></a> &#12290;&#26500;&#36896;&#24182;&#26816;&#26597; sentry &#23545;&#35937;&#65292;&#21487;&#33021;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#21518;&#65292;&#36890;&#36807;&#35843;&#29992; <a href="cpp-locale-num_get-get.html"><tt>std::num_get::get()</tt></a> &#25552;&#21462; bool &#20540;&#12290;</div>
<div class="t-li1"><span class="t-li">7)</span> &#25552;&#21462;&#27867;&#29992;&#25351;&#38024;&#20540;&#65292;&#28508;&#22312;&#22320;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#12290;&#23384;&#20648;&#20540;&#21040;&#32473;&#23450;&#30340;&#24341;&#29992; <code>value</code> &#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#27492;&#20989;&#25968;&#34920;&#29616;&#20026;<a href="cpp-named_req-FormattedInputFunction.html"><span style="font-style:italic">&#26377;&#26684;&#24335;&#36755;&#20837;&#20989;&#25968;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(FormattedInputFunction)</span></a> &#12290;&#26500;&#36896;&#24182;&#26816;&#26597; sentry &#23545;&#35937;&#65292;&#21487;&#33021;&#36339;&#36807;&#21069;&#23548;&#31354;&#26684;&#21518;&#65292;&#36890;&#36807;&#35843;&#29992; <a href="cpp-locale-num_get-get.html"><tt>std::num_get::get()</tt></a> &#25552;&#21462;&#27867;&#29992;&#25351;&#38024;&#20540;&#12290;</div>
<div class="t-li1"><span class="t-li">8-10)</span> &#35843;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">func<span class="br0">(</span><span class="sy2">*</span>this<span class="br0">)</span></span></span> &#65292;&#20854;&#20013; <code>func</code> &#20026; I/O &#25805;&#32437;&#31526;&#12290;</div>
<div class="t-li1"><span class="t-li">11)</span> &#34920;&#29616;&#20026;<a href="cpp-named_req-UnformattedInputFunction.html"><span style="font-style:italic">&#26080;&#26684;&#24335;&#36755;&#20837;&#20989;&#25968;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(UnformattedInputFunction)</span></a> &#12290;&#22312;&#26500;&#36896;&#24182;&#26816;&#26597; sentry &#23545;&#35937;&#21518;&#65292;&#20174;&#36755;&#20837;&#27969;&#25552;&#21462;&#25152;&#26377;&#25968;&#25454;&#24182;&#23558;&#23427;&#23384;&#20648;&#21040; <code>sb</code> &#12290;&#33509;&#28385;&#36275;&#19979;&#21015;&#26465;&#20214;&#20043;&#19968;&#21017;&#25552;&#21462;&#20572;&#27490;&#65306;
<dl>
<dd>
<ul>
<li>&#36755;&#20837;&#24207;&#21015;&#19978;&#20986;&#29616;&#25991;&#20214;&#23614;&#65307;</li>
<li>&#36755;&#20986;&#24207;&#21015;&#20013;&#25554;&#20837;&#22833;&#36133;&#65288;&#35813;&#24773;&#20917;&#19979;&#19981;&#25552;&#21462;&#35201;&#34987;&#25554;&#20837;&#30340;&#23383;&#31526;&#65289;&#65307;</li>
<li>&#20986;&#29616;&#24322;&#24120;&#65288;&#35813;&#24773;&#20917;&#19979;&#25429;&#25417;&#24322;&#24120;&#65292;&#32780;&#20165;&#33509; <code>exceptions()</code> &#20013;&#21551;&#29992;&#20102; <code>failbit</code> &#25165;&#37325;&#25243;&#65289;&#12290;</li>
</ul>
</dd>
</dl>
&#20219;&#19968;&#24773;&#20917;&#19979;&#65292;&#23384;&#20648;&#25552;&#21462;&#30340;&#23383;&#31526;&#25968;&#20110;&#25104;&#21592;&#21464;&#37327;&#20013;&#65292;&#20854;&#20540;&#21487;&#30001;&#23545; <span class="t-lc"><a href="cpp-io-basic_istream-gcount.html">gcount()</a></span> &#30340;&#21518;&#32487;&#35843;&#29992;&#35775;&#38382;&#12290;&#33509; <code>sb</code> &#20026;&#31354;&#25351;&#38024;&#25110;&#26410;&#25554;&#20837;&#23383;&#31526;&#21040; <code>sb</code> &#20013;&#65292;&#21017;&#35843;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">setstate<span class="br0">(</span>failbit<span class="br0">)</span></span></span> &#65288;&#33509;&#21551;&#29992;&#21017;&#20250;&#25243;&#20986; <span class="t-lc"><a href="cpp-io-ios_base-failure.html">std::ios_base::failure</a></span> &#65289;&#12290;</div>
<p>&#33509;&#25552;&#21462;&#22833;&#36133;&#65292;&#21017;&#20889;&#20837;&#38646;&#21040; <code>value</code> &#24182;&#35774;&#32622; <code>failbit</code> &#12290;&#33509;&#25552;&#21462;&#32467;&#26524;&#23545;&#20110; <code>value</code> &#36807;&#22823;&#25110;&#36807;&#23567;&#65292;&#21017;&#20889;&#20837; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-numeric_limits.html"><span class="kw344">std::<span class="me2">numeric_limits</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">max</span><span class="br0">(</span><span class="br0">)</span></span></span> &#25110; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-numeric_limits.html"><span class="kw344">std::<span class="me2">numeric_limits</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">min</span><span class="br0">(</span><span class="br0">)</span></span></span> &#24182;&#35774;&#32622; <code>failbit</code> &#26631;&#24535;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td>value</td>
<td>-</td>
<td>&#21040;&#35201;&#23384;&#20648;&#25552;&#21462;&#20540;&#21040;&#30340;&#25972;&#25968;&#25110;&#28014;&#28857;&#20540;&#30340;&#24341;&#29992;</td>
</tr>
<tr class="t-par">
<td>func</td>
<td>-</td>
<td>&#25351;&#21521; I/O &#25805;&#32437;&#31526;&#20989;&#25968;&#30340;&#25351;&#38024;</td>
</tr>
<tr class="t-par">
<td>sb</td>
<td>-</td>
<td>&#25351;&#21521;&#35201;&#20889;&#20837;&#20840;&#37096;&#25968;&#25454;&#21040;&#30340;&#27969;&#32531;&#20914;&#30340;&#25351;&#38024;</td>
</tr>
</table>
<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">1-9,11)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></div>
<div class="t-li1"><span class="t-li">10)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">func<span class="br0">(</span><span class="sy2">*</span>this<span class="br0">)</span></span></span></div>
<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;iomanip&gt;</span>
<span class="co2">#include &lt;sstream&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-string-basic_string.html"><span class="kw1230">std::<span class="me2">string</span></span></a> input <span class="sy1">=</span> <span class="st0">&quot;41 3.14 false hello world&quot;</span><span class="sy4">;</span>
<a href="cpp-io-basic_istringstream.html"><span class="kw1735">std::<span class="me2">istringstream</span></span></a> stream<span class="br0">(</span>input<span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">int</span> n<span class="sy4">;</span>
<span class="kw4">double</span> f<span class="sy4">;</span>
<span class="kw4">bool</span> b<span class="sy4">;</span>
stream <span class="sy1">&gt;&gt;</span> n <span class="sy1">&gt;&gt;</span> f <span class="sy1">&gt;&gt;</span> <a href="cpp-io-manip-boolalpha.html"><span class="kw1764">std::<span class="me2">boolalpha</span></span></a> <span class="sy1">&gt;&gt;</span> b<span class="sy4">;</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">&quot;n = &quot;</span> <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="sy1">&lt;&lt;</span> <span class="st0">&quot;f = &quot;</span> <span class="sy1">&lt;&lt;</span> f <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span>
<span class="sy1">&lt;&lt;</span> <span class="st0">&quot;b = &quot;</span> <span class="sy1">&lt;&lt;</span> <a href="cpp-io-manip-boolalpha.html"><span class="kw1764">std::<span class="me2">boolalpha</span></span></a> <span class="sy1">&lt;&lt;</span> b <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; streambuf &#37325;&#36733;&#25552;&#21462;&#21097;&#20313;&#20869;&#23481;</span>
stream <span class="sy1">&gt;&gt;</span> <a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a>.<span class="me1">rdbuf</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</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></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">n = 41
f = 3.14
b = false
hello world</pre></div>
</div>
</div>
<h3><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A">&#32570;&#38519;&#25253;&#21578;</span></h3>
<p>&#19979;&#21015;&#26356;&#25913;&#34892;&#20026;&#30340;&#32570;&#38519;&#25253;&#21578;&#36861;&#28335;&#22320;&#24212;&#29992;&#20110;&#20197;&#21069;&#20986;&#29256;&#30340; C++ &#26631;&#20934;&#12290;</p>
<table class="dsctable" style="font-size:0.8em">
<tr>
<th>DR</th>
<th>&#24212;&#29992;&#20110;</th>
<th>&#20986;&#29256;&#26102;&#30340;&#34892;&#20026;</th>
<th>&#27491;&#30830;&#34892;&#20026;</th>
</tr>
<tr>
<td><a rel="nofollow" class="external text" href="https://cplusplus.github.io/LWG/issue696">LWG 696</a></td>
<td>C++98</td>
<td>&#25552;&#21462;&#22833;&#36133;&#26102;&#19981;&#26356;&#25913; <code>value</code></td>
<td>&#35774;&#20026;&#38646;&#25110;&#26368;&#22823;/&#26368;&#23567;&#20540;</td>
</tr>
</table>
<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-io-basic_istream-operator_gtgt2.html"><span class="t-lines"><span>operator&gt;&gt;<span class="t-dsc-small">(std::basic_istream)</span></span></span></a></div>
</div>
</td>
<td>&#25552;&#21462;&#23383;&#31526;&#21644;&#23383;&#31526;&#25968;&#32452;<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_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-utility-bitset-operator_ltltgtgt2.html"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span></span></a></div>
</div>
</td>
<td>&#25191;&#34892; bitset &#30340;&#27969;&#36755;&#20837;&#21644;&#36755;&#20986;<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-numeric-complex-operator_ltltgtgt.html"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span></span></a></div>
</div>
</td>
<td>&#22797;&#25968;&#30340;&#24207;&#21015;&#21270;&#21644;&#21453;&#24207;&#21015;&#21270;<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-numeric-random-linear_congruential_engine-operator_ltltgtgt.html"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</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>&#25191;&#34892;&#20266;&#38543;&#26426;&#25968;&#24341;&#25806;&#30340;&#27969;&#36755;&#20837;&#21644;&#36755;&#20986;<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-numeric-random-uniform_int_distribution-operator_ltltgtgt.html"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</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>&#25191;&#34892;&#20266;&#38543;&#26426;&#25968;&#20998;&#24067;&#30340;&#27969;&#36755;&#20837;&#21644;&#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-io-basic_istream-read.html"><span class="t-lines"><span>read</span></span></a></div>
</div>
</td>
<td>&#35835;&#24182;&#21462;&#36208;&#19968;&#22359;&#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-io-basic_istream-readsome.html"><span class="t-lines"><span>readsome</span></span></a></div>
</div>
</td>
<td>&#35835;&#24182;&#21462;&#36208;&#24050;&#32463;&#21487;&#29992;&#30340;&#23383;&#31526;&#22359;<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-io-basic_istream-get.html"><span class="t-lines"><span>get</span></span></a></div>
</div>
</td>
<td>&#20174;&#27969;&#20013;&#35835;&#24182;&#21462;&#36208;&#65288;&#31227;&#38500;&#31867;&#20284;&#25351;&#38024;&#21521;&#19979;&#19968;&#20010;&#20803;&#32032;&#31227;&#21160;&#65289;&#19968;&#20010;&#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-io-basic_istream-getline.html"><span class="t-lines"><span>getline</span></span></a></div>
</div>
</td>
<td>&#19968;&#30452;&#35835;&#24182;&#21462;&#36208;&#23383;&#31526;&#65292;&#30452;&#33267;&#25214;&#21040;&#32473;&#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-utility-from_chars.html"><span class="t-lines"><span>from_chars</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>&#36716;&#25442;&#23383;&#31526;&#24207;&#21015;&#21040;&#25972;&#25968;&#25110;&#28014;&#28857;&#20540;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
</table>
</div>
<div class="visualClear"></div>
</div>
</div>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink