49 lines
2.5 KiB
HTML
49 lines
2.5 KiB
HTML
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<title>std::chrono::year::year</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::chrono::year::</span>year</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-chrono.html">chrono</a>‎ | <a href="cpp-chrono-year.html">year</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">year<span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="kw1">default</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> <span class="kw4">constexpr</span> year<span class="br0">(</span><span class="kw4">int</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<p>构造 <code>year</code> 对象。</p>
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<div class="t-li1"><span class="t-li">1)</span> 默认构造函数保留年份值未初始化。</div>
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<div class="t-li1"><span class="t-li">2)</span> 若 <code>y</code> 在范围 [-32767, 32767] 中，则构造保有年份值 <code>y</code> 的 <code>year</code> 对象。否则保有值未指定。</div>
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