在ajax的已不请求中，常常返回json对象。可以利用json.net给我们提供的api达到快速开发。

例子：

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Newtonsoft.Json;//这是json.net的命名空间

public partial class _Default : System.Web.UI.Page
{

protected void Page_Load(object sender,EventArgs e) { StudentInfo info = new StudentInfo(); info.Sname = "dld"; info.Gender = "女"; info.Age = 33; string str = JsonConvert.SerializeObject(info); Response.Write(str); } } public class StudentInfo { public string Sname { get; set; } public string Gender { get; set; } public byte Age { get; set; } }