【单选题】下面程序运行结果是abstract class BaseClass{ public virtual void MethodA() { Console.WriteLine("BaseClass"); } public virtual void MethodB() { }} class Class1 : BaseClass { new public void MethodA() { Console.W...
【单选题】下面程序运行结果是 abstract class BaseClass { public virtual void MethodA() { Console.WriteLine("BaseClass"); } public virtual void MethodB() { } } class Class1 : BaseClass { new public void MethodA() { Conso...