补充等待功能

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　　Implementing a "wait" function in VB

Here注释：s a simple way of implementing an accurate "wait" function in VB.

Add a timer called timer1 to a form. Set its Interval property to 0 and it注释：s enabled property to FALSE.

Add two labels (label1 and label2) and a command button (command1) to the form.
Add the following subroutine and Timer1 event code:

Public Sub Wait(seconds)

    注释：-- Turn timer on
    Timer1.Enabled = True

    注释：-- Set Timer Interval
    Me.Timer1.Interval = 1000 * seconds
    While Me.Timer1.Interval > 0
        DoEvents
    Wend

    注释：-- Turn timer off
    Timer1.Enabled = False
End Sub

Private Sub Timer1_Timer()
    Timer1.Interval = 0
End Sub

That注释：s it! Use the Wait function anywhere a delay is required, for example:

Private Sub Command1_Click()
    Label1.Caption = Now
    Wait (5)
    Label2.Caption = Now
End Sub

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