.net 有参属性 index （索引）

    public class IndexTempte
    {
        public ArrayList nameList = new ArrayList();

        public string this[int index]
        {
            get
            {
                return nameList[index].ToString();
            }
            set { nameList.Add(value); }
        }

    }

        static void Main(string[] args)
        {
            var list = new IndexTempte();
            list[] = "China";
            list[] = "USA";
            list[] = "Germany";

            Console.WriteLine("name :{0}", list[]);

        }