DateDiff问题（VB .net 4.0）

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嗨!!， 对于我的一个项目，我在计时器中使用DateDiff功能，如下所述： - NoOfValues = DateDiff（DateInterval.Second，StartTime，EndTime） StartTime，EndTime&执行周期的NoOfValues如下所述

Hi!!, For one of my project i'm using DateDiff function in a timer as mentioned below:- NoOfValues = DateDiff(DateInterval.Second, StartTime, EndTime) the values of StartTime, EndTime & NoOfValues for a cycle of execution are as mentioned below

Start Time= 11/18/2013 4:28:46 PM End Time= 11/18/2013 4:29:37 PM NoOfValues= 51 Start Time= 11/18/2013 4:29:38 PM End Time= 11/18/2013 4:29:49 PM NoOfValues= 10 Start Time= 11/18/2013 4:29:50 PM End Time= 11/18/2013 4:30:00 PM NoOfValues= 10

我无法理解

I'm not able to understand how the difference of

[11/18/2013 4:29:38 PM & 11/18/2013 4:29:49 PM] =10

Plz指导我是否我已正确使用DateDiff函数。

Plz guide me whether i've used DateDiff function correctly.

推荐答案

您可以使用TimeSpan处理DateTime值的计算： You could use a TimeSpan to handle calculations on your DateTime values: Dim myDate1 As DateTime = new DateTime(2013, 11, 18, 4, 29, 38); Dim myDate2 As DateTime = new DateTime(2013, 11, 18, 4, 29, 49); TimeSpan ts = myDate2 - myDate1; long elapsedInMilliseconds = ts.Elapsed; float valueInSeconds = (float)elapsedInMilliseconds / 1000f; int value = Math.Floor(valueInSeconds);