[VB]简单Timer

Public Class Form1
Dim x As Integer
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
x = 1
Timer1.Interval = 1000
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label1.Left = Label1.Left + x * 100
If Label1.Left <= 0 Then
x = 1
End If
If Label1.Left + Label1.Width >= Me.Width Then
x = -1
End If
End Sub
End Class