List<>用法

        protected void Page_Load(object sender, EventArgs e)
        {
            //remove和removeAt方法
            List aa = new List();
            Users u = new Users();
            u.Username = "小明";
            u.Sex = "男";
            aa.Add(u);

            u = new Users();
            u.Username = "小红";
            u.Sex = "女";
            aa.Add(u);

            u = new Users();
            u.Username = "小亮";
            u.Sex = "男";
            aa.Add(u);
            foreach(Users a in aa)
            {
                Response.Write(a.Username+"，"+a.Sex+"");

            }
            Response.Write("----------------------------------");
            aa.RemoveAt(2);
            foreach (Users a in aa)
            {
                Response.Write(a.Username + "，" + a.Sex + "");
            }

            Response.Write("-------------------------------------");

            List ai = new List();
            for (int i = 0; i < 10;i++ )
            {
                ai.Add(i);
            }
            ai.Remove(5);//移除5，剩下012346789
            ai.RemoveAt(7);//移除8，应该移除7，但是上面一句已经移除了5
            string sw = "";
            for (int i = 0; i < ai.Count; i++)
            {
                sw += Convert.ToString(ai[i]);
            }
            Response.Write("sw:" + sw + "");
            ai.Clear();
            sw = "";
            for (int i = 0; i < ai.Count; i++)
            {
                sw += Convert.ToString(ai[i]);
            }
            Response.Write("sw:"+sw + "");

            //AddRange用法
            sw = "";
            int[] ic = { 33, 34, 35, 36, 37 };
            ai.AddRange(ic);
            for (int i = 0; i < ai.Count; i++)
            {
                sw += Convert.ToString(ai[i])+",";
            }
            Response.Write("AddRange:" +sw);
        }
    }

    public class Users
    {
        public virtual string Username { set; get; }
        public virtual string Sex { set; get; }
    }