Python:time, strftime和strptime
最常用的time.time()返回的是一个浮点数,单位为秒。但strftime处理的类型是time.struct_time,实际上是一个tuple。strptime和localtime都会返回这个类型。
>>> import time
>>> t = time.time()
>>> t
1202872416.4920001
>>> type(t)
<type 'float'>
>>> t = time.localtime()
>>> t
(2008, 2, 13, 10, 56, 44, 2, 44, 0)
>>> type(t)
<type 'time.struct_time'>
>>> time.strftime('%Y-%m-%d', t)
'2008-02-13'
>>> time.strptime('2008-02-14', '%Y-%m-%d')
(2008, 2, 14, 0, 0, 0, 3, 45, -1)
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