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vb.net倒计时的简单介绍

IT技术倒计时

vb.net倒计时不显示1Label1.Text = 20 - time
Label6.Text = 20 - time '不要加1就可以了
或者:
If time = 20 Then time = 0
time = time + 1 '这句与上面的调换了位置
或者按照楼上的方法
vb.net怎么倒计时关闭窗口 就是我要它 还有15秒关闭form1 怎么能加什么控件吗？加一个计时器控件Timer1
代码如下:
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Timer1.Interval = 15000
Timer1.Start()
MessageBox.Show("程序将在15s后关闭.")
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Me.Dispose()
End Sub
求高手用vb.net做一个倒计时程序 。画面添加textbox1 timer1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Interval = 1000
TextBox1.Text = "2011/12/07 10:35:00"
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If IsDate(TextBox1.Text) = True Then
Timer1.Start()
End If
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If Format(Now, "yyyy/MM/dd hh:mm:ss") = TextBox1.Text Then
MsgBox("It's time to go")
Timer1.Stop()
End If
End Sub
VB.net中如何用timer控件编出一个简单的倒计时器？Dim tCount As Integer '用来计数
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
tCount = 10
Timer1.Interval = 1000 '每秒执行一次
Timer1.Enabled = True
End
Sub
Private Sub
Timer1_Tick(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Timer1.Tick
tCount -= 1
If tCount = 0 Then
MessageBox.Show("时间到")
Timer1.Enabled = False
End If
End
Sub
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