asp.net對象合并

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public class com     {         /// <summary>         /// 把參數轉為JSON字串         /// </summary>         /// <param name="all">所有的參婁</param>         /// <returns>JSON字串</returns>         public static Hashtable StringToJSON(string all)         {             Hashtable ht = new Hashtable();             string[] arpar = all.Split(‘&‘);             foreach (string p in arpar)                 ht.Add(p.Split(‘=‘)[0], p.Split(‘=‘)[1]);             return ht;         }         /// <summary>         /// 對象合并之後的JSON字串         /// </summary>         /// <param name="str">參數對象</param>         /// <param name="obj">原始對象</param>         /// <returns>合并後的字串</returns>         public static string extend(object obj, Hashtable hashTable)         {             Hashtable ht = new Hashtable();             List<string> listobj = new List<string>();             foreach (PropertyInfo pi in obj.GetType().GetProperties())                 listobj.Add(pi.Name);                           List<string> listpar = new List<string>();             foreach (DictionaryEntry de in hashTable)                 listpar.Add(de.Key.ToString());               //當存在的時候添加新值             foreach (DictionaryEntry de in hashTable)                 if (listobj.Contains(de.Key.ToString()))                     ht.Add(de.Key.ToString(), de.Value.ToString());             //當不存在的時候添加預設值             foreach (PropertyInfo pi in obj.GetType().GetProperties())                 if (!listpar.Contains(pi.Name))                     ht.Add(pi.Name, pi.GetValue(obj, null));             JavaScriptSerializer serializer = new JavaScriptSerializer();             return new JavaScriptSerializer().Serialize(ht);                     }     }