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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::time_put_byname</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_locale_time_put_byname skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>time_put_byname</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-locale.html">locale</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-locale.html"><locale></a></code></div>
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<td></td>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> CharT, <span class="kw1">class</span> OutputIterator <span class="sy1">=</span> <a href="cpp-iterator-ostreambuf_iterator.html"><span class="kw671">std::<span class="me2">ostreambuf_iterator</span></span></a><span class="sy1"><</span>CharT<span class="sy1">></span> <span class="sy1">></span><br />
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<span class="kw1">class</span> time_put_byname <span class="sy4">:</span> <span class="kw1">public</span> <a href="cpp-locale-time_put.html"><span class="kw1952">std::<span class="me2">time_put</span></span></a><span class="sy1"><</span>CharT, OutputIterator<span class="sy1">></span><span class="sy4">;</span></span></div>
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<p><span class="t-lc"><strong class="selflink">std::time_put_byname</strong></span> 是 <span class="t-lc"><a href="cpp-locale-time_put.html">std::time_put</a></span> 平面,封装在其构造时指定的 locale 的日期和时间格式化规则。</p>
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<p>标准库提供二个特化</p>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><a href="cpp-header-locale.html"><locale></a></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">time_put_byname</span><span class="sy1"><</span><span class="kw4">char</span>, OutputIterator<span class="sy1">></span></span></span></td>
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<td>窄/多字节时间格式化</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">time_put_byname</span><span class="sy1"><</span><span class="kw4">wchar_t</span>, OutputIterator<span class="sy1">></span></span></span></td>
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<td>宽字符串时间格式化</td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">成员类型</span></h3>
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<table class="t-dsc-begin">
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<td>成员类型</td>
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<td>定义</td>
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<tr class="t-dsc">
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<td><code>char_type</code></td>
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<td><code>CharT</code></td>
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<tr class="t-dsc">
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<td><code>iter_type</code></td>
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<td><code>OutputIterator</code></td>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">成员函数</span></h3>
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<table class="t-dsc-begin">
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
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<div><strong class="selflink"><span class="t-lines"><span>(构造函数)</span></span></strong></div>
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</div>
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</td>
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<td>构造新的 <code>time_put_byname</code> 平面<br />
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<span class="t-mark">(公开成员函数)</span></td>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
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<div><strong class="selflink"><span class="t-lines"><span>(析构函数)</span></span></strong></div>
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</div>
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</td>
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<td>析构 <code>time_put_byname</code> 平面<br />
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<span class="t-mark">(受保护成员函数)</span></td>
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</tr>
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</table>
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<div class="t-template-editlink" style=""></div>
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<div class="t-member">
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<h2><span class="mw-headline" id="std::time_put_byname::time_put_byname"><span style="font-size:0.7em; line-height:130%">std::time_put_byname::</span>time_put_byname</span></h2>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> time_put_byname<span class="br0">(</span> <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> name, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> refs <span class="sy1">=</span> <span class="nu0">0</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> time_put_byname<span class="br0">(</span> <span class="kw4">const</span> <a href="cpp-string-basic_string.html"><span class="kw1230">std::<span class="me2">string</span></span></a><span class="sy3">&</span> name, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> refs <span class="sy1">=</span> <span class="nu0">0</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<td></td>
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<td></td>
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<td></td>
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</table>
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<p>为名为 <code>name</code> 的本地环境构造新的 <code>std::time_put_byname</code> 平面。</p>
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<p><code>refs</code> 用于资源管理:在销毁最后一个保有平面的 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-locale-locale.html"><span class="kw1894">std::<span class="me2">locale</span></span></a></span></span> 对象时,若 <span class="t-c"><span class="mw-geshi cpp source-cpp">refs <span class="sy1">==</span> <span class="nu0">0</span></span></span> ,则实现销毁平面对象。否则,不销毁对象。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<table class="t-par-begin">
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<tr class="t-par">
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<td>name</td>
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<td>-</td>
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<td>本地环境的名称</td>
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</tr>
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<tr class="t-par">
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<td>refs</td>
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<td>-</td>
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<td>链接到该平面的引用数</td>
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</tr>
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</table>
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</div>
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<div class="t-template-editlink" style=""></div>
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<div class="t-member">
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<h2><span class="mw-headline" id="std::time_put_byname::.7Etime_put_byname"><span style="font-size:0.7em; line-height:130%">std::time_put_byname::</span>~time_put_byname</span></h2>
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<table class="t-dcl-begin">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">protected</span><span class="sy4">:</span><br />
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~time_put_byname<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td class="t-dcl-nopad"></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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</tbody>
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</table>
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<p>销毁平面。</p>
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</div>
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<div class="t-inherited">
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<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::time_put">继承自 <a href="cpp-locale-time_put.html"><span style="font-size:0.7em; line-height:130%">std::</span>time_put</a></span></h2>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.AF.B9.E8.B1.A1">成员对象</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>成员名</td>
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<td>类型</td>
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</tr>
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<tr class="t-dsc">
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<td><code>id</code> <span class="t-cmark">[静态]</span></td>
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<td><span class="t-lc"><a href="cpp-locale-locale-id.html">std::locale::id</a></span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0_2">成员函数</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-time_put-put.html"><span class="t-lines"><span>put</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_put</code><br />
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<span class="t-mark">(<code>std::time_put<CharT,OutputIt></code> 的公开成员函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E5.8F.97.E4.BF.9D.E6.8A.A4.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">受保护成员函数</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-time_put-put.html"><span class="t-lines"><span>do_put</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>格式化日期/时间并写入输出流<br />
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<span class="t-mark">(<code>std::time_put<CharT,OutputIt></code> 的虚受保护成员函数)</span></td>
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</tr>
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</table>
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</div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<div class="t-example">
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<p>此示例用被各种 time_put_byname 平面替换了 time_put 平面的 "C" 本地环境打印当前时间</p>
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<div class="t-example-live-link"></div>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="cpp source-cpp">
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<pre class="de1"><span class="co2">#include <iostream></span>
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<span class="co2">#include <ctime></span>
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<span class="co2">#include <iomanip></span>
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<span class="co2">#include <codecvt></span>
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<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
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<span class="br0">{</span>
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<a href="cpp-chrono-c-time_t.html"><span class="kw1024">std::<span class="me2">time_t</span></span></a> t <span class="sy1">=</span> <a href="cpp-chrono-c-time.html"><span class="kw1011">std::<span class="me2">time</span></span></a><span class="br0">(</span><a href="cpp-types-NULL.html"><span class="kw103">NULL</span></a><span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-locale-wbuffer_convert.html"><span class="kw1900">std::<span class="me2">wbuffer_convert</span></span></a><span class="sy1"><</span><a href="cpp-locale-codecvt_utf8.html"><span class="kw1982">std::<span class="me2">codecvt_utf8</span></span></a><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">>></span> conv<span class="br0">(</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="br0">)</span><span class="sy4">;</span>
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<a href="cpp-io-basic_ostream.html"><span class="kw1743">std::<span class="me2">wostream</span></span></a> out<span class="br0">(</span><span class="sy3">&</span>conv<span class="br0">)</span><span class="sy4">;</span>
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out.<span class="me1">imbue</span><span class="br0">(</span><a href="cpp-locale-locale.html"><span class="kw1894">std::<span class="me2">locale</span></span></a><span class="br0">(</span>out.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span>,
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new std<span class="sy4">::</span><span class="me2">time_put_byname</span><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">></span><span class="br0">(</span><span class="st0">"ja_JP"</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
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out <span class="sy1"><<</span> <a href="cpp-io-manip-put_time.html"><span class="kw1801">std::<span class="me2">put_time</span></span></a><span class="br0">(</span><a href="cpp-chrono-c-localtime.html"><span class="kw1020">std::<span class="me2">localtime</span></span></a><span class="br0">(</span><span class="sy3">&</span>t<span class="br0">)</span>, L<span class="st0">"%A %c"</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
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out.<span class="me1">imbue</span><span class="br0">(</span><a href="cpp-locale-locale.html"><span class="kw1894">std::<span class="me2">locale</span></span></a><span class="br0">(</span>out.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span>,
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new std<span class="sy4">::</span><span class="me2">time_put_byname</span><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">></span><span class="br0">(</span><span class="st0">"ru_RU.utf8"</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
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out <span class="sy1"><<</span> <a href="cpp-io-manip-put_time.html"><span class="kw1801">std::<span class="me2">put_time</span></span></a><span class="br0">(</span><a href="cpp-chrono-c-localtime.html"><span class="kw1020">std::<span class="me2">localtime</span></span></a><span class="br0">(</span><span class="sy3">&</span>t<span class="br0">)</span>, L<span class="st0">"%A %c"</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
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out.<span class="me1">imbue</span><span class="br0">(</span><a href="cpp-locale-locale.html"><span class="kw1894">std::<span class="me2">locale</span></span></a><span class="br0">(</span>out.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span>,
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new std<span class="sy4">::</span><span class="me2">time_put_byname</span><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">></span><span class="br0">(</span><span class="st0">"sv_SE.utf8"</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
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out <span class="sy1"><<</span> <a href="cpp-io-manip-put_time.html"><span class="kw1801">std::<span class="me2">put_time</span></span></a><span class="br0">(</span><a href="cpp-chrono-c-localtime.html"><span class="kw1020">std::<span class="me2">localtime</span></span></a><span class="br0">(</span><span class="sy3">&</span>t<span class="br0">)</span>, L<span class="st0">"%A %c"</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
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<span class="br0">}</span></pre></div>
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</div>
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||||
<p>可能的输出:</p>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="text source-text">
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<pre class="de1">木曜日 2012年08月09日 21時41分02秒
|
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Четверг Чт. 09 авг. 2012 21:41:02
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||||
torsdag tor 9 aug 2012 21:41:02</pre></div>
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</div>
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</div>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<table class="t-dsc-begin">
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<td>
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|
||||
<div><a href="cpp-locale-time_put.html"><span class="t-lines"><span>time_put</span></span></a></div>
|
||||
</div>
|
||||
</td>
|
||||
<td>格式化 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-chrono-c-tm.html"><span class="kw1023">std::<span class="me2">tm</span></span></a></span></span> 内容为字符序列以输出<br />
|
||||
<span class="t-mark">(类模板)</span></td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<div class="visualClear"></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user