下面的代码中有什么错误吗？_______ usingSystem; classA { publicvirtualvoidF(){ Console.WriteLine("A.F"); } } abstractclassB:A { publicabstractoverridevoidF(); }//newpublicabstractvoidF();
下面的代码中有什么错误吗？_______ usingSystem; classA { publicvirtualvoidF(){ Console.WriteLine("A.F"); } } abstractclassB:A { publicabstractoverridevoidF(); }//newpublicabstractvoidF();
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