Python字符串时间转换

>>> cr_date = '2013-10-31 18:23:29.000227'
>>> cr_date = datetime.datetime.strptime(cr_date, '%Y-%m-%d %H:%M:%S.%f')
>>> print(cr_date)
2013-10-31 18:23:29.000227
>>> cr_date = cr_date.strftime("%m/%d/%Y")
>>> print(cr_date)
10/31/2013