94-datetmie模块

datetmie模块

datetime模块可以看成是时间加减的模块

import time
import datetime

1 返回当前时间

print(datetime.datetime.now())
# 2019-09-15 15:40:50.268535

print(datetime.date.fromtimestamp(time.time()))
# 2019-09-15

2 当前时间+3天

print(datetime.datetime.now() + datetime.timedelta(3))
# 2019-09-18 15:40:50.268535

3 当前时间-3天

print(datetime.datetime.now() + datetime.timedelta(-3))
# 2019-09-12 15:40:50.268535

4 当前时间-3小时

print(datetime.datetime.now() + datetime.timedelta(hours=3))
#2019-09-15 18:40:50.268535

5 当前时间+30分钟

print(datetime.datetime.now() + datetime.timedelta(minutes=30))
#2019-09-15 16:10:50.268535

6 时间替换

c_time = datetime.datetime.now()
print(c_time.replace(minute=20, hour=5, second=13))
#2019-09-15 05:20:13.268535