比较 Python 中的两个日期字符串
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Comparing two date strings in Python
提问by Sid K.
Let's say I have a string: "10/12/13" and "10/15/13", how can I convert them into date objects so that I can compare the dates? For example to see which date is before or after.
假设我有一个字符串：“10/12/13”和“10/15/13”，如何将它们转换为日期对象以便比较日期？例如查看哪个日期早于或晚于。
回答by gongzhitaao
回答by aIKid
Here's one solution using datetime.datetime.strptime:
这是使用的一种解决方案datetime.datetime.strptime：
>>> date1 = datetime.datetime.strptime('10/12/13', '%m/%d/%y')
>>> date2 = datetime.datetime.strptime('10/15/13', '%m/%d/%y')
>>> date1 < date2
True
>>> date1 > date2
False
回答by Paul Draper
Use datetime.datetime.strptime.
from datetime import datetime
a = datetime.strptime('10/12/13', '%m/%d/%y')
b = datetime.strptime('10/15/13', '%m/%d/%y')
print 'a' if a > b else 'b' if b > a else 'tie'
回答by Paul Draper
Use datetime.datetime.strptime:
>>> from datetime import datetime as dt
>>> a = dt.strptime("10/12/13", "%m/%d/%y")
>>> b = dt.strptime("10/15/13", "%m/%d/%y")
>>> a > b
False
>>> a < b
True
>>>
