interfacetest.vb

c#设计模式WithCla

 MustInherit Class IControl        

   'Default Constructor
   Public Sub New()  
       
   End Sub

' 
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   ' 
    ' 
    ' 
    public        Sub Paint()
    
    End Sub
   
   public Overrides Function ToString() As String
     ToString = "IControl"
   End Function
 
End Class