91 lines
4.8 KiB
HTML
91 lines
4.8 KiB
HTML
<!DOCTYPE html>
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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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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>std::chrono::tzdb</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_chrono_tzdb skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::chrono::</span>tzdb</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-chrono.html">chrono</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<table class="t-dcl-begin">
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<div>定义于头文件 <code><a href="cpp-header-chrono.html"><chrono></a></code></div>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">struct</span> tzdb<span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<p>类 <code>tzdb</code> 表示 <a rel="nofollow" class="external text" href="https://www.iana.org/time-zones">IANA 时区数据库</a>的副本。用户不能构造 <code>tzdb</code> ，而只能通过自由函数 <span class="t-lc">std::chrono::get_tzdb_list</span> 和 <span class="t-lc">std::chrono::get_tzdb</span> 访问其一个实例。</p>
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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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<td>成员对象</td>
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<td>描述</td>
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</tr>
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<tr class="t-dsc">
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<td><code>version</code></td>
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<td>含数据库版本的 <span class="t-lc"><a href="cpp-string-basic_string.html">std::string</a></span></td>
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</tr>
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<tr class="t-dsc">
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<td><code>zones</code></td>
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<td>含时区描述的已排序 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1"><</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">time_zone</span><span class="sy1">></span></span></span></td>
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<tr class="t-dsc">
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<td><code>links</code></td>
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<td>含时区替用名描述（链接）的已排序 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1"><</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">link</span><span class="sy1">></span></span></span></td>
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<tr class="t-dsc">
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<td><code>leaps</code></td>
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<td>含闰秒描述的已排序 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1"><</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">leaps</span><span class="sy1">></span></span></span></td>
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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">
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<div><a href="cpp-chrono-tzdb-locate_zone.html"><span class="t-lines"><span>locate_zone</span></span></a></div>
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</div>
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</td>
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<td>以给定的名称定位时区<br />
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<span class="t-mark">(公开成员函数)</span></td>
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<div><a href="cpp-chrono-tzdb-current_zone.html"><span class="t-lines"><span>current_zone</span></span></a></div>
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</td>
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<td>返回本地时区<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</table>
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<div class="visualClear"></div>
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