datetime

获取当前时间

from datetime import datetime
print(datetime.now())

datetime获取对象

from datetime import datetime
print(datetime(2020, 5, 20, 13, 14, 00))
print(type(datetime.now()))
print(datetime(2020, 5, 20, 13, 14, 00) - datetime(2020, 5, 20, 13, 13, 00))

将当前时间转换为时间戳

from datetime import datetime
t = datetime.now()
print(t.timestamp())

将时间戳转换成当前时间

from datetime import datetime
import time
print(datetime.fromtimestamp(time.time()))

将字符串转换成对象

from datetime import datetime
print(type(datetime.strptime("2020-10-10 22:22:22", "%Y-%m-%d %H:%M:%S")))

将对象转换成字符串

from datetime import datetime
print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
print(str(datetime.now()))

datetime加减

from datetime import datetime, timedelta
print(datetime.now() + timedelta(hours=365 * 24))

time用处：记录日志时使用、计算时间