072 datetime模块

一、datetime模块

datetime模块：主要用于时间的修改。

import datetime导入datetime模块

当前时间

print(datetime.datetime.now())  # 打印时间

2019-08-16 20:17:14.376109

当前时间+3天

now = datetime.datetime.now()

print(now+datetime.timedelta(3))  # 默认+3天

2019-08-19 20:17:14.376109

当前时间+3小时

now = datetime.datetime.now()
print(now+datetime.timedelta(hours=3))  # 3小时

2019-08-16 23:19:58.902024

当前时间+3分钟

now = datetime.datetime.now()

print(now+datetime.timedelta(minutes=3))  # 3分钟

2019-08-16 20:22:58.902024

时间替换

now = datetime.datetime.now()
print(now.replace(year=1997,month=9,day=25,hour=5,minute=20,second=0))

1997-09-25 05:20:00.902024