这篇教程Python datetime模块的使用示例写得很实用，希望能帮到您。
1、获取当前年月日时分秒# -*- 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))
2、datetime转为string# -*- 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))
3、string转为datetime# -*- 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)
4、时间相加# -*- 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/t/t/t{}'.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))
5、时间相减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:/t/t/t/t{}'.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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