using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Dynamic;//添加引用namespace ExpandoObject_exercise{    class Program    {        static void Main(string[] args)        {            dynamic expand = new ExpandoObject();            expand.name = "dynamic动态";            expand.yes = "成功";            Console.WriteLine("{0}\n{1}", expand.name, expand.yes);            Console.Read();        }    }}

结果: