问题描述
我可以使用 time.strptime 解析包含日期/时间的字符串
I am able to parse strings containing date/time with time.strptime
>>> import time
>>> time.strptime('30/03/09 16:31:32', '%d/%m/%y %H:%M:%S')
(2009, 3, 30, 16, 31, 32, 0, 89, -1)
如何解析包含毫秒的时间字符串?
How can I parse a time string that contains milliseconds?
>>> time.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.5/_strptime.py", line 333, in strptime
data_string[found.end():])
ValueError: unconverted data remains: .123
推荐答案
Python 2.6添加了一个新的strftime / strptime宏%f
,这是微秒。不知道这是否在任何地方记录。但是如果你使用2.6或3.0,你可以这样做:
Python 2.6 added a new strftime/strptime macro %f
, which does microseconds. Not sure if this is documented anywhere. But if you're using 2.6 or 3.0, you can do this:
time.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S.%f')
编辑:我从来没有真正使用时间
模块,所以我没有注意到这一点,但似乎time.struct_time不' t实际存储毫秒/微秒。您可以使用 datetime
更好,如下所示:
I never really work with the time
module, so I didn't notice this at first, but it appears that time.struct_time doesn't actually store milliseconds/microseconds. You may be better off using datetime
, like this:
>>> from datetime import datetime
>>> a = datetime.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S.%f')
>>> a.microsecond
123000
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