Python常用时间处理

>>> import time
>>> time.strftime('%Y-%m-%d %H:%M:%S',time.localtime())
'2010-04-19 17:54:23'

>>> import time
>>> time.strptime('2010-04-19 17:54:23','%Y-%m-%d %H:%M:%S')
(2010, 4, 19, 17, 54, 23, 0, 109, -1)

>>> import time
>>> time.mktime(time.localtime())
1271671001.0
>>> time.mktime(time.strptime('2010-04-19 00:00:00','%Y-%m-%d %H:%M:%S'))
1271606400.0

>>> import datetime
>>> print datetime.date.today() - datetime.timedelta(days=1)
2010-04-18