擅长:python、mysql、java
<p>24小时到12小时</p>
<pre><code>>>> from datetime import datetime
>>> datetime.strptime('2016-05-25 13:45:56', '%Y-%m-%d %H:%M:%S')
datetime.datetime(2016, 5, 25, 13, 45, 56)
>>> dt=datetime.strptime('2016-05-25 13:45:56', '%Y-%m-%d %H:%M:%S')
>>> dt.strftime('%Y-%m-%d %I:%M:%S %p')
'2016-05-25 01:45:56 PM'
>>>
</code></pre>
<p>12小时到24小时</p>
^{pr2}$