linq to json
https://www.cnblogs.com/qingheshiguang/p/13755125.html
string json = "{\"Name\" : \"Jack\", \"Age\" : 34, \"Colleagues\" : [{\"Name\" : \"Tom\" , \"Age\":44},{\"Name\" : \"Abel\",\"Age\":29}] }";
//将json转换为JObject JObject jObj = JObject.Parse(json); //通过属性名或者索引来访问,仅仅是自己的属性名,而不是所有的 JToken nameToken = jObj["Name"]; Console.WriteLine(nameToken.ToString());