Net面试题

    xiaoxiao2021-03-25  117

    public interface Test { void Sound(); } public class Dog : Test { public void Sound() { Console.WriteLine("Dog"); } } public class Cat : Dog { public void Sound() { Console.WriteLine("Cat"); } } class Program { static void Main(string[] args) { Cat c=new Cat(); c.Sound(); Console.ReadKey(); } }结果为Cat
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