<p>您不需要<code>import datetime</code>或<code>timedelta</code>来执行此操作。在</p>
<pre><code>df['DTDate'] = pd.to_datetime(df['DTDate']) # can skip this if column 'DTDate' is already of the right type
</code></pre>
<p><code>x.weekday()</code>提取星期一=0,星期日=6的一天。在</p>
^{pr2}$
<p>产量:</p>
<pre><code> Date_call DTDate weekday weekdayNo newDate
0 2014-12-31 2014-12-31 Wednesday 3 2015-01-05
1 2014-10-29 2014-10-29 Wednesday 3 2014-11-03
2 2014-10-28 2014-10-28 Tuesday 2 2014-11-03
3 2015-03-27 2015-03-27 Friday 5 2015-03-30
4 2015-02-27 2015-02-27 Friday 5 2015-03-02
5 2014-11-27 2014-11-27 Thursday 4 2014-12-01
6 2014-10-27 2014-10-27 Monday 1 2014-10-27
7 2015-03-26 2015-03-26 Thursday 4 2015-03-30
8 2015-02-26 2015-02-26 Thursday 4 2015-03-02
9 2014-12-26 2014-12-26 Friday 5 2014-12-29
10 2014-11-26 2014-11-26 Wednesday 3 2014-12-01
11 2014-10-26 2014-10-26 Sunday 0 2014-10-27
12 2015-03-25 2015-03-25 Wednesday 3 2015-03-30
13 2014-12-25 2014-12-25 Thursday 4 2014-12-29
14 2015-03-24 2015-03-24 Tuesday 2 2015-03-30
15 2015-02-24 2015-02-24 Tuesday 2 2015-03-02
16 2014-12-24 2014-12-24 Wednesday 3 2014-12-29
17 2014-11-24 2014-11-24 Monday 1 2014-11-24
18 2015-03-23 2015-03-23 Monday 1 2015-03-23
</code></pre>