擅长:python、mysql、java
<p>这有助于:</p>
<pre><code>>>>from dateutil.relativedelta import relativedelta
>>>import datetime
>>>datetime.date.today()
datetime.date(2016, 3, 10)
>>>datetime.date.today() - relativedelta(months=3)
datetime.date(2015, 12, 10)
</code></pre>
<p>也可以使用relativedelta()来增减周和年。在</p>