又类的属性生成json格式数据

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;namespace MV4项目学习.Controllers{    public class HlhController : Controller    {        // GET: Hlh        public JsonResult Index()        {            ViewData["app"] = "mlh1421";            ViewBag.name = "qwer";            //return View();            List list = new List();            list.Add(new A { Name = "mlh", Age = 12 });            return Json(list,JsonRequestBehavior.AllowGet);        }        public ActionResult Mlh()        {            return View("Show");        }    }    class A    {        public string Name        {            get;set;        }         public int Age        {            get;            set;        }    }}