/** 使用 Newtonsoft.Json 序列化对象 **/

 [WebMethod]

 public String getPersonInfos() {

     // 初始化数据

     List < Pserson > mlist = new List < Pserson > ();

     for (int i = 0; i < 5; i++)

     {

         Pserson mpersopn = new Pserson();

         mpersopn.name = "张三";

         mpersopn.sex = i % 2 == 0 ? "男" : "女";

         mpersopn.age = 20 + i;

         mlist.Add(mpersopn);

     }

     CallbackObject mcallback = new CallbackObject();

     mcallback.falg = "200";

     mcallback.message = "请求成功";

     mcallback.result = mlist;

     String str = JsonConvert.SerializeObject(mcallback);

     return str;

 }

 [WebMethod]

 public List < Pserson > getPersonInfo()

 {

     string jsonText = "[{'name':'张三','sex':'男','age':30},{'name':'李四','sex':'女','age':25}]";

     List < Pserson > personlist = JsonConvert.DeserializeObject < List < Pserson >> (jsonText);

     foreach(Pserson p in personlist) {

         System.Diagnostics.Debug.WriteLine("\n\n");

         String str = "name = " + p.name + "\t sex = " + p.sex + "\t age = " + p.age + "\n";

         System.Diagnostics.Debug.WriteLine(str);

     }

     return personlist;

 }

var result = JsonConvert.DeserializeAnonymousType(client.Execute(request).Content, new { access_token = string.Empty, expires_in = string.Empty });

var o2 = JsonConvert.DeserializeObject(json) as JObject;