macos 在 python 中使用 datetime.replace() 更改小时
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Changing the hour with datetime.replace() in python
提问by cit
Given that foo is a valid datetime object in python,
鉴于 foo 是 python 中的有效日期时间对象，
One can change the hour represented in a datestamp (foo) by doing something something like:
可以通过执行以下操作来更改日期戳 (foo) 中表示的小时：
foo2 = foo.replace( hour=5 )
Rather then replacing the hour with a particular value ( as is done above )..is it possible to increment the time in foo by say, 5 hours ? Something along the lines of:
而不是用特定值替换小时（如上所述）。是否可以将 foo 中的时间增加 5 小时？类似的东西：
foo2 = foo.replace( hour += 5 )
Which I know is not correct...but maybe that explains better what I am aiming to do...
我知道这是不正确的......但也许这更好地解释了我的目标......
I am limited to using python 2.5.1 ( the version on OS X 10.5.x) .. and am not able to add any modules such as pyTZ
我只能使用 python 2.5.1（OS X 10.5.x 上的版本）..并且无法添加任何模块，例如 pyTZ
回答by balpha
That's what timedeltais for:
这timedelta就是为了：
>>> import datetime
>>> d = datetime.datetime(2010, 12, 25, 18, 25)
>>> d + datetime.timedelta(hours = 8)
datetime.datetime(2010, 12, 26, 2, 25)
