http://blog.163.com/hy_85/blog/static/1484587662011465235773/
以前要转json一般都是自己手工去写,再不济就是用Newtonsoft.Json.dll这个第三方的类库
今天突然发现.NET4.0里面自带了,这可真是一个伟大的发现
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准备工作 
  
需要引用 
System.Web.Extensions.dll 这个类库 
命名空间: 
System.Web.Script.Serialization | 
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 数据结构 
    public class Team{
 public string Name { get; set; }
 public List<User> Users { get; set; }
 }
 public class User
 {
 public int Id { get; set; }
 public string Name { get; set; }
 }
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     Class --> JSON 
JavaScriptSerializer js = new JavaScriptSerializer();Team team = new Team()
 {
 Name = "梦之队",
 Users = new List<User>() {
 new User() { Id = 1, Name = "XXX" },
 new User() { Id = 2, Name = "YYY" },
 new User() { Id = 3, Name = "ZZZ" },
 }
 };
 string json = js.Serialize(team);
 Console.WriteLine(json);
 
输出结果 
 
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Json --> Class 
            string json = "{\"Name\":\"梦之队\",\"Users\":[{\"Id\":1,\"Name\":\"XXX\"},{\"Id\":2,\"Name\":\"YYY\"},{\"Id\":3,\"Name\":\"ZZZ\"}]}";JavaScriptSerializer js = new JavaScriptSerializer();
 Team team = js.Deserialize<Team>(json);
 
结果: 
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