python datetime相減

>>> a=datetime.datetime(2012, 3, 10, 8, 40, 50, 737418) >>> b=datetime.datetime(2012, 3, 9, 8, 40, 50, 737418) >>> a-b datetime.timedelta(1) >>> c=a-b >>> c.days 1 >>> c.seconds 0 >>> a=datetime.datet

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