在vb.net项目的windows窗体中,添加一个Timer控件

然后创造下面的方法

    '延迟操作
    'delayTime单位是毫秒,1000毫秒=1秒
    Public Sub Delay(ByVal delayTime As Single)
        Dim timerCount As Single

        delayTime = delayTime / 1000
        timerCount = Me.Timer1.Interval + delayTime
        While timerCount - Me.Timer1.Interval > 0
            Application.DoEvents()
            System.Threading.Thread.Sleep(1)
            timerCount = timerCount - 1
        End While
    End Sub

调用很简单:
Delay(3000)

其中3000是毫秒,也就是3秒钟