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  • c# 继承

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

    namespace ConsoleApplication3
    {
        
    class Program
        {
            
    static void Main(string[] args)
            {
                A a 
    = new A();
                Console.WriteLine(a.ToString());
                Console.WriteLine(a.ToString2());

                a 
    = new B();
                Console.WriteLine(a.ToString());
                Console.WriteLine(a.ToString2());
                Console.WriteLine(((B)a).ToString2());
                Console.ReadLine();
            }
        }

        
    class A
        {
            
    public override string ToString()
            {
                
    return "A.tostring()";
            }
            
    public string ToString2()
            {
                
    return "A.tostring2()";

            }
        }

        
    class B : A 
        {
            
    public override string ToString()
            {
                
    return "B.tostring()";
            }
            
    public new  string ToString2()
            {
                
    return "B.tostring2()";

            }
        }

    }

    结果:

    A.tostring()
    A.tostring2()
    B.tostring()
    A.tostring2()
    B.tostring2()
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  • 原文地址:https://www.cnblogs.com/pan11jing/p/2172052.html
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