-------------JSON字符串---------

{"id":"-1","result":{"relations":[{"ptId":"713990455","game":"风云","gameid":"50","worldid":"1.1","nickname":"贵族≮蓝皓

≯","gender":"0","relation":"1"},{"ptId":"714626904","game":"风云","gameid":"50","worldid":"1.1","nickname":"刘凡

吻","gender":"0","relation":"1"},{"ptId":"719696772","game":"风云","gameid":"50","worldid":"1.1","nickname":"贵族≮杀神

≯","gender":"0","relation":"1"},{"ptId":"713969267","game":"风云","gameid":"50","worldid":"1.1","nickname":"吉米

仔","gender":"0","relation":"1"},{"ptId":"714286741","game":"风云","gameid":"50","worldid":"1.1","nickname":"指定天

下","gender":"0","relation":"1"},{"ptId":"714905671","game":"风云","gameid":"50","worldid":"1.1","nickname":"冰玉※雅

儿","gender":"1","relation":"1"},{"ptId":"719695948","game":"风云","gameid":"50","worldid":"1.1","nickname":"ξψ妹妹

δοο","gender":"1","relation":"1"},{"ptId":"714884563","game":"风云","gameid":"50","worldid":"1.1","nickname":"药王苗子的老

婆","gender":"0","relation":"1"},{"ptId":"714726500","game":"风云","gameid":"50","worldid":"1.1","nickname":"贵族≮Kiss

≯","gender":"0","relation":"32"},{"ptId":"866101129","game":"风云","gameid":"50","worldid":"1.1","nickname":"聂

风","gender":"0","relation":"32"}],"friendCount":"104"}}

这个json字符串可以分为三个类的组合，最外层我命名为results，中间的命名为relationsInfo，最内的命名为Relations，只要明白以上关系就好办了

以下为类定义

----------自定义类---------

[DataContract(Name = "results")]
    public class results
    {

        [DataMember(Name = "id")]
        public string id{get ;set ; }

        [DataMember(Name = "result")]
        public relationsInfo result{get ;  set ;}
    }

      [DataContract]
    public class relationsInfo
    {
        [DataMember(Name = "relations")]
        public Relations[] relations{get; set;}

        [DataMember(Name = "friendCount")]
        public string friendCount{get;set;}
    }

     [DataContract]
    public class Relations
    {
        private string _gender;
       

        [DataMember(Name = "ptId")]
        public string ptId{ get;set;}

        [DataMember(Name = "game")]
        public string game{get;set;}

        [DataMember(Name = "gameid")]
        public string gameid {get; set;}

        [DataMember(Name = "worldid")]
        public string worldid{ get;set;}

        [DataMember(Name = "nickname")]
        public string nickname{  get;set;}

        [DataMember(Name = "gender")]
        public string gender
        {
            get {
                if (_gender == "0")
                {
                    return "男";
                }
                else
                {
                    return "女";
                }
            }
            set {
                this._gender = value;
            }
        }

        [DataMember(Name = "relation")]
        public string relation{get;set ;}

    }

---------------转换方法-----------

 string sRelativeUsersJson; //json来源;

 JsonQueryStringConverter convert = new JsonQueryStringConverter();

 results relations = new results();
 relations = (results)convert.ConvertStringToValue(sRelativeUsersJson, relations.GetType());

//或

DataContractJsonSerializer jsr = new DataContractJsonSerializer(typeof(relationsInfo));
System.IO.MemoryStream ms = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(sRelativeUsersJson));
relationsInfo relations = (relationsInfo)jsr.ReadObject(ms);