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<p></p><div class="toc"><h3>文章目录</h3><ul><li><a data-token="22ebd3960f4c3b2494ab33a0b8bffe9f" href="https://blog.csdn.net/Yellow_python/article/details/82024295#datetime_1" rel="nofollow">datetime模块</a></li><li><a data-token="27e6f612f8b79f3a0784be56d22e21ea" href="https://blog.csdn.net/Yellow_python/article/details/82024295#_28" rel="nofollow">相对时间→绝对时间</a></li><li><a data-token="dbe5076417fa8db59e21cc72e83380c7" href="https://blog.csdn.net/Yellow_python/article/details/82024295#_56" rel="nofollow">相对日期→绝对日期</a></li><li><a data-token="b5260883194973956ae2dfdee4e4a455" href="https://blog.csdn.net/Yellow_python/article/details/82024295#_86" rel="nofollow">各种情况</a></li></ul></div><p></p>
<h1><a id="datetime_1"></a>datetime模块</h1>
<pre class="blockcode"><code class="prism language-py">In <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">:</span> <span class="token keyword">import</span> datetime
In <span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span><span class="token punctuation">:</span> datetime<span class="token punctuation">.</span>datetime<span class="token punctuation">.</span>now<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span>strftime<span class="token punctuation">(</span><span class="token string">'%Y-%m-%d %H:%M'</span><span class="token punctuation">)</span>
Out<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span><span class="token punctuation">:</span> <span class="token string">'2018-08-24 19:03'</span>
In <span class="token punctuation">[</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">:</span> <span class="token punctuation">(</span>datetime<span class="token punctuation">.</span>datetime<span class="token punctuation">.</span>now<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">-</span>datetime<span class="token punctuation">.</span>timedelta<span class="token punctuation">(</span>hours<span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span>strftime<span class="token punctuation">(</span><span class="token string">'%Y-%m-%d %H:%M'</span><span class="token punctuation">)</span>
Out<span class="token punctuation">[</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">:</span> <span class="token string">'2018-08-24 18:03'</span>
</code></pre>
<p>示例：获取<u>2小时前</u>的时间</p>
<pre class="blockcode"><code class="prism language-py"><span class="token keyword">import</span> datetime
r <span class="token operator">=</span> <span class="token string">'2小时前'</span><span class="token punctuation">.</span>replace<span class="token punctuation">(</span><span class="token string">'前'</span><span class="token punctuation">,</span> <span class="token string">''</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> <span class="token string">'小时'</span> <span class="token keyword">in</span> r<span class="token punctuation">:</span>
r <span class="token operator">=</span> datetime<span class="token punctuation">.</span>timedelta<span class="token punctuation">(</span>hours<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span>r<span class="token punctuation">.</span>replace<span class="token punctuation">(</span><span class="token string">'小时'</span><span class="token punctuation">,</span> <span class="token string">''</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">elif</span> <span class="token string">'分钟'</span> <span class="token keyword">in</span> r<span class="token punctuation">:</span>
r <span class="token operator">=</span> datetime<span class="token punctuation">.</span>timedelta<span class="token punctuation">(</span>minutes<span class="token operator">=</span><span class="token builtin">int</span><span class="token punctuation">(</span>r<span class="token punctuation">.</span>replace<span class="token punctuation">(</span><span class="token string">'分钟'</span><span class="token punctuation">,</span> <span class="token string">''</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
now <span class="token operator">=</span> datetime<span class="token punctuation">.</span>datetime<span class="token punctuation">.</span>now<span class="token punctuation">(</span><span class="token punctuation">)</span>
past <span class="token operator">=</span> <span class="token punctuation">(</span>now <span class="token |
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