【winform 学习】C# 转换成JSON对象

C#里面对json的处理有2种，JavaScriptSerializer和DataContractJsonSerializer。

JavaScriptSerializer读出来就是key-value pair这种Dictionary<string, object>的东西，这个比较通用。
DataContractJsonSerializer类似于其他的Serializer，比如XMLSerializer一类的，是对象序列化/反序列化用的

第一种示例代码：

                (测试发现using System.Web.Script.Serialization不能在Winform 中引用，所以JavaScriptSerializer 不用在winform中使用

                   那winform 下怎么解析JSON 可以参考：http://q.cnblogs.com/q/46365/  1.Json.NET  2. 引用官方的System.Web.Extensions.dll

                   dll文件：可以网上下载，或者参考下面地址的方面：http://wenku.it168.com/d_000825166.shtml)：

            string  jsonStr =  @"{""fruits"":{""a"":""orange"",""b"":""banana"",""c"":""apple""},""name"":{""z"":""zhangsan"",""l"":""lisi""}}" ;

            JavaScriptSerializer serializer =  new  JavaScriptSerializer();

            Dictionary< string ,  object > json = serializer.DeserializeObject(jsonStr)  as  Dictionary< string ,  object >;

            Dictionary< string ,  object > obj = json[ "fruits" ]  as  Dictionary< string ,  object >;

            Console.WriteLine(obj[ "a" ]);

            Console.ReadLine();

第二种：DataContractJsonSerializer很不错，（不过，要申明DataContract数据数据契约，如果参数的名字不是固定的话，用第一种更好）

　　　　[DataContract]
        public  class  DanTengObj
        {
            [DataMember(Order = 1, Name =  "fruits" )]
            public  Fruits fruits {  get ;  set ; }
            [DataMember(Order = 2, Name =  "name" )]
            public  Name name {  get ;  set ; }

            [DataContract]
            public  class  Fruits
            {
                [DataMember(Order = 1, Name =  "a" )]
                public  string  a {  get ;  set ; }
                [DataMember(Order = 2, Name =  "b" )]
                public  string  b {  get ;  set ; }
                [DataMember(Order = 3, Name =  "c" )]
                public  string  c {  get ;  set ; }
            }

            [DataContract]
            public  class  Name
            {
                [DataMember(Order = 1, Name =  "z" )]
                public  string  z {  get ;  set ; }
                [DataMember(Order = 1, Name =  "l" )]
                public  string  l {  get ;  set ; }
            }
        }

        static  void  DanTengJsonTest()
        {
            string  jsonStr =  @"{""fruits"":{""a"":""orange"",""b"":""banana"",""c"":""apple""},""name"":{""z"":""zhangsan"",""l"":""lisi""}}" ;

            DataContractJsonSerializer js =  new  DataContractJsonSerializer( typeof (DanTengObj));

            using  (MemoryStream ms =  new  MemoryStream(Encoding.UTF8.GetBytes(jsonStr)))
            {
                DanTengObj obj = js.ReadObject(ms)  as  DanTengObj;
                Console.WriteLine(obj.fruits.a);
            }
        }

参考地址：http://bbs.csdn.net/topics/390545176