Ｃ# 基础: new 和 overrider 的区别

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

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            //contact ct = new contact(); //抽象类
            class1 ct1 = new class1();
            class2 ct2 = new class2();

            contact ct3 = new class1();
            contact ct4 = new class2();
            ct1.prinf();
            ct2.prinf();
            ct3.prinf();
            ct4.prinf(); 

            //int i = System.Console.Read();
            //string str = System.Console.ReadLine();
            //System.Console.Read();

            System.Console.ReadLine();
        }

        abstract public class contact
        {
            public virtual void prinf()    //关键字virtual
            {
                Console.WriteLine("这是虚方法");
            }  

        }
        public class class1 : contact
        {
            public override void prinf()   //关键字override
            {
                Console.WriteLine("这是新的方法");
            }  

        }  

        public class class2 : contact
        {
            public new void prinf()     //关键字new
            {
                Console.WriteLine("这是另一个新的方法");
            }  

        }  

    }
}

运行结果如下：