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leetcode-problemset/leetcode-cn/problem (Chinese)/转变日期格式 [reformat-date].html
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<p>给你一个字符串&nbsp;<code>date</code>&nbsp;,它的格式为&nbsp;<code>Day Month Year</code>&nbsp;,其中:</p>
<ul>
<li><code>Day</code>&nbsp;是集合&nbsp;<code>{&quot;1st&quot;, &quot;2nd&quot;, &quot;3rd&quot;, &quot;4th&quot;, ..., &quot;30th&quot;, &quot;31st&quot;}</code>&nbsp;中的一个元素。</li>
<li><code>Month</code>&nbsp;是集合&nbsp;<code>{&quot;Jan&quot;, &quot;Feb&quot;, &quot;Mar&quot;, &quot;Apr&quot;, &quot;May&quot;, &quot;Jun&quot;, &quot;Jul&quot;, &quot;Aug&quot;, &quot;Sep&quot;, &quot;Oct&quot;, &quot;Nov&quot;, &quot;Dec&quot;}</code>&nbsp;中的一个元素。</li>
<li><code>Year</code>&nbsp;的范围在 <code>[1900, 2100]</code>&nbsp;之间。</li>
</ul>
<p>请你将字符串转变为&nbsp;<code>YYYY-MM-DD</code>&nbsp;的格式,其中:</p>
<ul>
<li><code>YYYY</code>&nbsp;表示 4 位的年份。</li>
<li><code>MM</code>&nbsp;表示 2 位的月份。</li>
<li><code>DD</code>&nbsp;表示 2 位的天数。</li>
</ul>
<p>&nbsp;</p>
<p><strong>示例 1</strong></p>
<pre><strong>输入:</strong>date = &quot;20th Oct 2052&quot;
<strong>输出:</strong>&quot;2052-10-20&quot;
</pre>
<p><strong>示例 2</strong></p>
<pre><strong>输入:</strong>date = &quot;6th Jun 1933&quot;
<strong>输出:</strong>&quot;1933-06-06&quot;
</pre>
<p><strong>示例 3</strong></p>
<pre><strong>输入:</strong>date = &quot;26th May 1960&quot;
<strong>输出:</strong>&quot;1960-05-26&quot;
</pre>
<p>&nbsp;</p>
<p><strong>提示:</strong></p>
<ul>
<li>给定日期保证是合法的,所以不需要处理异常输入。</li>
</ul>