static void Main(string[] args)

         {

             dynamic obj = new System.Dynamic.ExpandoObject();

             obj.name = "jj";

             obj.age = ;

             obj.gender = ;

             foreach (var item in (IDictionary<string,object>)obj)

             {

                 Console.WriteLine(item.Key + " : " + item.Value);

             }

             Console.WriteLine("************************************************");

             //动态删除属性

             var dic = (IDictionary<string,object>)obj;

             dic.Remove("name");

             foreach (var item in (IDictionary<string, object>)obj)

             {

                 Console.WriteLine(item.Key + " : " + item.Value);

             }

             Console.Read();

         }