如何通过vb.net来计算登录和注销之间的时间间隔 [英] how to calculate the time interval between login and logout in a form by vb.net

问题描述

如何通过vb.net计算表单登录和注销之间的时间间隔:doh:

推荐答案

认真吗?

MSDN时间跨度结构 [

Seriously?

MSDN TimeSpan Structure[^]

From the MSDN page.

Dim departure As DateTime = #06/12/2010 6:32PM#
Dim arrival As DateTime = #06/13/2010 10:47PM#
Dim travelTime As TimeSpan = arrival - departure
Console.WriteLine("{0} - {1} = {2}", arrival, departure, travelTime)

用户登录时，请记录时间.
用户注销后，再次记录时间.
查找记录的时间之间的时差.

有什么问题? :omg:

When the user login, log the time.
When the user logs out, log the time again.
Find the difference between the logged time.

What''s the problem? :omg:

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