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//类本身就有索引
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Super[] arrs = new Super[3];
            arrs[0] = new Super();
            arrs[1] = new SonOverride();
            arrs[2] = new SonNew();
            for (int i = 0; i < arrs.Length; i++)
            {
                arrs[i].Show();
            }
            SonNew sonNew = new SonNew();
            sonNew.Show();
            Console.ReadKey();
        }
    }

    public class Super
    {
        public virtual void Show()
        {
            Console.WriteLine("Super");
        }
    }

    public class SonOverride : Super
    {
        public override void Show()
        {
            Console.WriteLine("Son Override");
        }
    }

    public class SonNew : Super
    {
        public new void Show()
        {
            Console.WriteLine( "Son New");
        }
    }
}

//类自定义索引器
classProgram
{
    staticvoidMain(string[] args)
    {
        man mm =new man();
        mm[0]="spike";
        mm[1]="spike002";
        mm[2]="spike004";
        mm[3]="spike004";
    for(int i =0; i <10; i++)
    {
        Console.WriteLine(mm[i]);
    }
        Console.ReadKey();
}
class man
{
    public man()
    {
        for(int i =0; i <10; i++)
        {
            manlist[i]="N.A.";
        }
    }
    // 其实外面的索引器就是在这里给定义好大小的，这就是这个方法的局限性
    private string[] manlist =newstring[10]; 

    publicstringthis[int index]
    {
        set{ manlist[index]= value;}
        get {return manlist[index];}
    }
}