>>> a = datetime.datetime.now()>>> b = datetime.datetime.now()>>> adatetime.datetime(2013, 8, 25, 2, 5, 1, 879000)>>> bdatetime.datetime(2013, 8, 25, 2, 5, 8, 984000)>>> a - bdatetime.timedelta(-1, 86392, 895000)>>> b - adatetime.timedelta(0, 7, 105000)>>> (b - a).microseconds105000>>> (b - a).seconds7>>> (b - a).microseconds / 1000105
您的微秒不包括过去的秒数
