delegated.vb

大名鼎鼎的mono是.NET平台的跨平台（支持linux

'Author:
'   V. Sudharsan ([e-mail])
'
' (C) 2005 Novell, Inc.

Imports System

MustInherit Class aa
    Delegate Function SD(ByVal i As Integer) As Integer
    MustOverride Function f(ByVal i As Integer) As Integer
End Class

Class ab
    Inherits aa
    Delegate Function SD(ByVal i As Integer) As Integer
    Overrides Function f(ByVal i As Integer) As Integer
    End Function
End Class

Module M
    Function Main() As Integer
        Dim a As ab = New ab()
    End Function
End Module