c#中string字符串转为json与json转对象

添加引用，Newtonsoft.Json.dll
using Newtonsoft.Json.Linq;

 1 //字符串转json
 2 public static void strJson()
 3 {
 4 string jsonText = "{"shenzheng":"深圳","beijing":"北京","shanghai":[{"zj1":"zj11","zj2":"zj22"},"zjs"]}";
 5 
 6 JObject jo = (JObject)JsonConvert.DeserializeObject(jsonText);//或者JObject jo = JObject.Parse(jsonText);
 7 string zone = jo["shenzheng"].ToString();//输出 "深圳"
 8 string zone_en = jo["shanghai"].ToString();//输出 "[{"zj1":"zj11","zj2":"zj22"},"zjs"]"
 9 string zj1 = jo["shanghai"][1].ToString();//输出 "zjs"
10 Console.WriteLine(jo);
11 }

 1     //对象与数组转JSON
 2     public static void GetJsonString()
 3     {
 4         //初始化对象
 5         Obj product = new Obj() { Name = "苹果", Price = 5.5 };
 6         //序列化
 7         string o = new JavaScriptSerializer().Serialize(product);//值："{"Name":"苹果","Price":5.5}"
 8 
 9         //数组转json
10         List<Obj> products = new List<Obj>(){
11         new Obj(){Name="苹果",Price=5.5},
12         new Obj(){Name="橘子",Price=2.5},
13         new Obj(){Name="干柿子",Price=16.00}
14         };
15 
16         ProductList productlist = new ProductList();
17         productlist.GetProducts = products;
18         //序列化
19         string os = new JavaScriptSerializer().Serialize(productlist);
20         //输出 "{"GetProducts":[{"Name":"苹果","Price":5.5},{"Name":"橘子","Price":2.5},{"Name":"干柿子","Price":16}]}"
21     }
22 
23     //json转对象、数组, 反序列化
24     public static void JSONStringToList()
25     {
26 
27         //json格式字符串
28         string JsonStr = "{Name:'苹果',Price:5.5}";
29         JavaScriptSerializer Serializer = new JavaScriptSerializer();
30 
31         //json字符串转为对象, 反序列化
32         Obj obj = Serializer.Deserialize<Obj>(JsonStr);
33             Console.Write(obj.Name + ":" + obj.Price + "
");
34 
35         //json格式字符串
36         string JsonStrs = "[{Name:'苹果',Price:5.5},{Name:'橘子',Price:2.5},{Name:'柿子',Price:16}]";
37 
38         JavaScriptSerializer Serializers = new JavaScriptSerializer();
39 
40         //json字符串转为数组对象, 反序列化
41         List<Obj> objs = Serializers.Deserialize<List<Obj>>(JsonStrs);
42 
43         foreach (var item in objs)
44         {
45            Console.Write(item.Name + ":" + item.Price + "
");
46         }
47     }