csharp: using using System.Web.Script.Serialization read json

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using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; //先在項目中添加System.Web.Extensions引用.net 3.5 using System.Web.Script.Serialization; using System.Collections.Specialized; using System.Collections.Generic; using System.Text; using System.Net;     namespace JSONFromCS {     public partial class WebForm3 : System.Web.UI.Page     {         /// <summary>         /// 將json資料還原序列化為Dictionary         /// </summary>         /// <param name="jsonData">json資料</param>         /// <returns></returns>         private Dictionary<string, object> JsonToDictionary(string jsonData)         {             //執行個體化JavaScriptSerializer類的新執行個體             JavaScriptSerializer jss = new JavaScriptSerializer();             try             {                 //將指定的 JSON 字串轉換為 Dictionary<string, object> 類型的對象                 return jss.Deserialize<Dictionary<string, object>>(jsonData);             }             catch (Exception ex)             {                 throw new Exception(ex.Message);             }         }         /// <summary>         ///         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         protected void Page_Load(object sender, EventArgs e)         {             string  url = "http://www.weather.com.cn/data/cityinfo/101280601.html";             WebClient wc = new WebClient();             wc.Encoding = System.Text.Encoding.UTF8;//定義對象語言             string json = wc.DownloadString(url);             //string json = "{\"weatherinfo\":{\"city\":\"深圳\",\"cityid\":\"101280601\",\"temp\":\"32\",\"WD\":\"西南風\",\"WS\":\"4級\",\"SD\":\"68%\",\"WSE\":\"4\",\"time\":\"16:40\",\"isRadar\":\"1\",\"Radar\":\"JC_RADAR_AZ9755_JB\"}}";             StringBuilder strb = new StringBuilder();             Dictionary<string, object> dic = JsonToDictionary(json);//將Json資料轉成dictionary格式             Dictionary<string, object> dataSet = (Dictionary<string, object>)dic["weatherinfo"];             //使用KeyValuePair遍曆資料             foreach (KeyValuePair<string, object> item in dataSet)             {                   strb.Append(item.Key + ":" + item.Value + "<br/>");//顯示到介面                                                                 }               Response.Write(strb.ToString());         }     } }