C#编程-96：索引器的使用

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace IndexTest
{
    class Clerk
    {
        private string name;
        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        private char gender;
        public char Gender
        {
            get 
            {
                return gender;
            }
            set {
                if (value != '男' && value != '女')
                    gender = '男';
                else
                    gender = value;
            }
        }
        private int[] myint = new int[10];
        //定义索引器
        public int this[int index]
        {
            get { return myint[index]; }
            set { myint[index] = value; }
        }
        //虚索引器
        //public virtual int this[int index]
        //{
        //    get { return myint[index]; }
        //    set { myint[index] = value; }
        //}
        外部索引器
        //public extern int this[int index]
        //{
        //    get;
        //    set;
        //}
    }
    //抽象索引器
    abstract class ClerkOther
    {
        public abstract int this[int index]
        {
            set;
            get;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
        }
    }
}