如何在 Python 中对日期执行算术运算？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16670601/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to perform arithmetic operation on a date in Python?
提问by atams
I have a date column in csv file say Datehaving dates in this format 04/21/2013and I have one more column Next_Day. In Next_Daycolumn I want to populate the date which comes immediately after the date mentioned in date column. For eg. if date column has 04/21/2013as date then I want 04/22/2013in Next_Day column.
我在 csv 文件中有一个日期列，说Date有这种格式的日期04/21/2013，我还有一列Next_Day。在Next_Day列中，我想填充日期列中提到的日期之后的日期。例如。如果日期列04/21/2013作为日期，那么我想要04/22/2013在 Next_Day 列中。
We can use +1in excel but I don't know how to perform this in Python.
我们可以+1在 excel中使用，但我不知道如何在 Python 中执行此操作。
Please help me in resolving this.
请帮我解决这个问题。
采纳答案by jamylak
Using datetime.timedelta
>>> import datetime
>>> s = '04/21/2013'
>>> d = datetime.datetime.strptime(s, '%m/%d/%Y') + datetime.timedelta(days=1)
>>> print(d.strftime('%m/%d/%Y'))
04/22/2013
