new与override区别


using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Newoverride

{

    class Dad

    {

        public Dad()

        {

            Console.WriteLine("Dad construtor");

        }

        public virtual void method()

        {

            Console.WriteLine("Dad method");

        }

    }

    class SmallSon : Dad

    {

        public SmallSon()

        {

            Console.WriteLine("Smallson construtor");

        }

        public override void method()

        {

            Console.WriteLine("override Smallson method");

        }

    }

    class BigSon : Dad

    {

        public BigSon()

        {

            Console.WriteLine("BigSon construtor");

        }

        public new void method()

        {

            Console.WriteLine("new BigSon method ");

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Dad f = new Dad();

            f.method();

            Dad f1 = (Dad)new SmallSon();// 先初始化Dad(),然后再初始化SmallSon()

            f1.method();//override smallson method

            Dad f2 = (Dad)new BigSon();// 先初始化Dad(),然后再初始化Bigson()

            f2.method();// Dad method

            BigSon s = new BigSon();

            s.method();

           

        }

    }

}