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Ｃ# : new 和 overrider 的区别

2024-07-06 08:05:40   226人阅读

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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"); 
            } 
         
        } 
 
    }
}<br><br>

运行结果如下：


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