Question

C#怎么调用父类甚至祖父类的虚函数

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {
        class S1
        {
            public virtual void Method()
            {
                Console.WriteLine("这是S1实例方法");
            }
        }

        class S2:S1
        {
            public virtual void Method()
            {
                Console.WriteLine("这是S2实例方法");
            }
        }

        class S3 : S2
        {
            public  virtual void Method()
            {
                Console.WriteLine("这是S3实例方法");
            }
        }

        static void Main(string[] args)
        {
            S3 s = new S3();
            // 调用S3.Methoed
            s.Method();

            // 调用S2.Methoed
            ((S2)s).Method();

            // 调用S1.Methoed
            ((S1)s).Method();
        }
    }
}