我将来有一个日期,例如13/10/2008我需要减去当前日期(今天是28/09/2010)减去7天,那么21/09/2010减去13/10/2008,这将等于erm,720这个？
但显然,目前的日期并不总是28/09/2010.
我需要这个代码.
编辑：当我说未来我的意思是过去:)
解决方法
Sub Main()
Dim dt As DateTime = New DateTime(2008,10,13)
' be careful what you are subtracting from what
' the date you have is not in the future (year 2008)
' if the date is in the future: (dt.Subtract(DateTime.Now.AddDays(-7))).TotalDays
' or simply take the absolute value
Dim days As Double = (DateTime.Now.AddDays(-7).Subtract(dt)).TotalDays
Console.WriteLine(days)
End Sub