如何用python减去日期
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时间：2020-08-18 17:52:58 来源:igfitidea点击:
How to subtract dates with python
提问by Merlin
Today =
今天 =
today = datetime.datetime.now().strftime("%Y%m%d")
90days ago
90 天前
DD = datetime.timedelta(days=-90)
How do I get today - DD, or 90days ago?
我如何获得今天 - DD 或 90 天前？
采纳答案by Joshua Strouse
You should be able to subtract time deltas from datetime objects.
您应该能够从日期时间对象中减去时间增量。
today = datetime.datetime.now()
DD = datetime.timedelta(days=90)
earlier = today - DD
earlier_str = earlier.strftime("%Y%m%d")
回答by Jo?o Silva
回答by bgporter
Just subtract a timedelta from a datetime:
只需从日期时间中减去时间增量：
>>> import datetime
>>> today = datetime.datetime.today()
>>> DD = datetime.timedelta(days=90)
>>> today - DD
datetime.datetime(2010, 11, 3, 9, 56, 20, 924224)
(or if you want to use a negative timedelta like you did there, add them:
（或者，如果您想像在那里那样使用负时间增量，请添加它们：
>>> DD = datetime.timedelta(days=-90)
>>> today + DD
datetime.datetime(2010, 11, 3, 9, 56, 20, 924224)
回答by Shyam
from datetime import date,timedelta
currentDay = date.today()
requestedDay = currentDay - timedelta(days=90)
print(requestedDay)
hope it solves.
希望它解决。
