visitor.vb

苏金明编写的《用VB.NET和VC#.NET开发交互式CAD系统》一书的源代码

Public MustInherit Class Visitor

    Public MustOverride Sub toDraw(ByVal g As Graphics, ByVal line As CLine)
    Public MustOverride Sub toDraw(ByVal g As Graphics, ByVal circle As CCircle)

End Class