各种事件格式转换,datetime,time

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import datetime

import time

string转datetime
str = '2012-11-19'

date_time = datetime.datetime.strptime(str,'%Y-%m-%d')

date_time

datetime.datetime(2012,11,19,0,0)

datetime转string
date_time.strftime('%Y-%m-%d')

'2012-11-19'

datetime转时间戳
time_time = time.mktime(date_time.timetuple())

time_time

1353254400.0

时间戳转string
time.strftime('%Y-%m-%d',time.localtime(time_time))

'2012-11-19'

date转datetime
date = datetime.date.today()

date

datetime.date(2012,11,19)

datetime.datetime.strptime(str(date),'%Y-%m-%d') #将date转换为str,在由str转换为datetime

datetime.datetime(2012,11,19,0,0)