在ruby datetime中有add

在ruby datetime中有add_days吗？(Is there an add_days in ruby datetime?)

在C＃中，在DateTime类中有一个方法AddDays（[天数]）。

在ruby中有这样的方法吗？

In C#, There is a method AddDays([number of days]) in DateTime class.

Is there any kind of method like this in ruby?

最满意答案

Date类提供了一个+运算符，可以做到这一点。

>> d = Date.today => #<Date: 4910149/2,0,2299161> >> d.to_s => "2009-08-31" >> (d+3).to_s => "2009-09-03" >>

The Date class provides a + operator that does just that.

>> d = Date.today => #<Date: 4910149/2,0,2299161> >> d.to_s => "2009-08-31" >> (d+3).to_s => "2009-09-03" >>