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pexpireat.html
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<title>PEXPIREAT — Redis 命令参考</title>
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<span id="id1"></span><h1>PEXPIREAT<a class="headerlink" href="#pexpireat" title="Permalink to this headline">¶</a></h1>
<p><strong>PEXPIREAT key milliseconds-timestamp</strong></p>
<p>这个命令和 <a class="reference internal" href="expireat.html"><em>EXPIREAT</em></a> 命令类似，但它以毫秒为单位设置 <code class="docutils literal"><span class="pre">key</span></code> 的过期 unix 时间戳，而不是像 <a class="reference internal" href="expireat.html"><em>EXPIREAT</em></a> 那样，以秒为单位。</p>
<dl class="docutils">
<dt><strong>可用版本：</strong></dt>
<dd>>= 2.6.0</dd>
<dt><strong>时间复杂度：</strong></dt>
<dd>O(1)</dd>
<dt><strong>返回值：</strong></dt>
<dd><div class="first last line-block">
<div class="line">如果生存时间设置成功，返回 <code class="docutils literal"><span class="pre">1</span></code> 。</div>
<div class="line">当 <code class="docutils literal"><span class="pre">key</span></code> 不存在或没办法设置生存时间时，返回 <code class="docutils literal"><span class="pre">0</span></code> 。(查看 <a class="reference internal" href="expire.html"><em>EXPIRE</em></a> 命令获取更多信息)</div>
</div>
</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre>redis> SET mykey "Hello"
OK
redis> PEXPIREAT mykey 1555555555005
(integer) 1
redis> TTL mykey # TTL 返回秒
(integer) 223157079
redis> PTTL mykey # PTTL 返回毫秒
(integer) 223157079318
</pre></div>
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