Python datetime模块的使用示例

# -*- encoding=utf-8 -*-import datetimenow = datetime.datetime.now()print('now:{}'.format(now))year = now.yearprint('year:{}'.format(year))month = now.monthprint('month:{}'.format(month))day = now.dayprint('day:{}'.format(day))hour = now.hourprint('hour:{}'.format(hour))minute = now.minuteprint('minute:{}'.format(minute))second = now.secondprint('second:{}'.format(second))

# -*- encoding=utf-8 -*-import datetimenow = datetime.datetime.now()print(’type:{}’.format(type(now)))print(’now datetime:{}’.format(now))now_string = now.strftime(’%Y-%m-%d %H:%M:%S’)print(’type:{}’.format(type(now_string)))print(’now string:{}’.format(now_string))

# -*- encoding=utf-8 -*-import datetimetime_str = ’2021-01-28 10:51:26’time_date = datetime.datetime.strptime(time_str, ’%Y-%m-%d %H:%M:%S’)print(’type:{}’.format(type(time_date)))print(time_date)

# -*- encoding=utf-8 -*-import datetimetime_str = ’2021-01-28 10:00:00’time_date = datetime.datetime.strptime(time_str, ’%Y-%m-%d %H:%M:%S’)print(’原始时间:tttt{}’.format(time_date))add_info = datetime.timedelta(days=1, hours=2, minutes=3, seconds=4)add_end = time_date + add_infoprint(’加上1天2个小时3分钟4秒后:t{}’.format(add_end))

①两个时间差

# -*- encoding=utf-8 -*-import datetimetime_str = ’2021-01-28 10:00:00’time_date = datetime.datetime.strptime(time_str, ’%Y-%m-%d %H:%M:%S’)print(’原始时间:t{}’.format(time_date))time_str = ’2021-05-29 12:12:12’time_date2 = datetime.datetime.strptime(time_str, ’%Y-%m-%d %H:%M:%S’)print(’原始时间2:t{}’.format(time_date2))time_date3 = time_date2 - time_dateprint(’时间差:{}’.format(time_date3))

②减去1天2个小时3分钟4秒（加负数）

# -*- encoding=utf-8 -*-import datetimetime_str = ’2021-01-28 10:00:00’time_date = datetime.datetime.strptime(time_str, ’%Y-%m-%d %H:%M:%S’)print(’原始时间:tttt{}’.format(time_date))add_info = datetime.timedelta(days=-1, hours=-2, minutes=-3, seconds=-4)add_end = time_date + add_infoprint(’减去1天2个小时3分钟4秒后:t{}’.format(add_end))

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