擅长:python、mysql、java
<p>您需要从<code>pandas</code>导入<code>Timestamp</code>:</p>
<pre><code>>>> import pandas as pd
>>> from pandas import Timestamp
>>> d= pd.DataFrame({'DATE_FILLED': [Timestamp('2016-12-28 00:00:00'), Timestamp('2016-12-31 00:00:00'), Timestamp('2016-12-20 00:00:00'), Timestamp('2016-12-21 00:00:00'), Timestamp('2016-12-26 00:00:00')], 'DAYS_SUPPLY': [14, 14, 14, 7, 7]})
>>>
>>> d
DATE_FILLED DAYS_SUPPLY
0 2016-12-28 14
1 2016-12-31 14
2 2016-12-20 14
3 2016-12-21 7
4 2016-12-26 7
>>>
</code></pre>
<p>以后,你总可以用反省来给你一个很好的提示:</p>
^{pr2}$