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Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Form2.Show()
End Sub
End Class
Public Class Form2
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim f As Form3 = New Form3()
f.Show()
'Form3 is opened
Form1.Hide()
Me.Hide()
End Sub
End Class
Public Class Form3
Private Sub Form3_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
Form1.Dispose()
Form2.Dispose()
End Sub
End Class
以上是示例代码。我只建了三个窗口。
formE打开时,formA到formD全部隐藏,formE关闭时,所有画面在一起关闭。