myConfig mc = new myConfig();

    mc.config = "测试";

    mc.info = "还不错";

    JavaScriptSerializer json = new JavaScriptSerializer();

    object result = json.Serialize(mc);

    Response.Write(result);

    // 自定义类 下面会用到

    public class myConfig

    {

        public string config { get; set; }

            public string info { get; set; }

    }

    string str = "{config:'最新发动机',info:'我觉得是最好的'}";

    JavaScriptSerializer json = new JavaScriptSerializer();

    myConfig mc = json.Deserialize<myConfig>(str);

    Response.Write(mc.config + "--" + mc.info);

    string str = "[{config:'发动机',info:'最好的'},{config:'排量',info:'2.5cc'}]";

    JavaScriptSerializer json = new JavaScriptSerializer();

    // List<myConfig> result = (List<myConfig>)json.Deserialize<List<myConfig>>(str);

    // 功能同上

    List<myConfig> result = (List<myConfig>)json.Deserialize(str, typeof(List<myConfig>));    

    foreach (var item in result)

    {

        Response.Write(item.config + "--" + item.info + "<br/>");

    }