C#

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

namespace 索引器
{
    class Program
    {
        static void Main(string[] args)
        {
            var names = new IndexedNames();
            names[0] = "这是";
            names[1] = "一个";
            names[2] = "关于";
            names[3] = "索引器";
            names[4] = "的";
            names[5] = "例子";
            names[6] = "!";
            names[7] = "..";
            names[8] = "..";
            names[9] = "....";
            for (int i = 0; i < 10; ++i )
            {
                Console.WriteLine(names[i]);
            }
            Console.ReadLine();
        }
    }

    /// <IndexedNames> 索引器类
    /// 
    /// </IndexedNames>
    class IndexedNames
    {                                                              
        private string[] name_list = new string[10];
        // 构造
        public IndexedNames()
        {
            for (int i = 0; i < name_list.Length; ++i )
            {
                name_list[i] = "N/A";
            }
        }
        /// <索引器> 属性
        /// </索引器>
        /// <param name="index">索引
        /// </param>
        /// <returns>返回一个字符串
        /// </returns>
        public string this[int index]
        {
            // get方法
            get     
            {
                string tmp;
                if (index>=0&&index<=name_list.Length-1)
                {
                    tmp = name_list[index];
                }
                else
                {
                    tmp = "";
                }
                return tmp;
            }
            // set方法
            set
            {
                  if (index >= 0 && index <= name_list.Length - 1)
                  {
                      name_list[index] = value;
                  }
            }
        }       
    }
}