namespace Entity{    public class GetData    {        public static SIMPEntities SIMP = new SIMPEntities();        /// <summary>        /// 查询方法--返回序列化json        /// </summary>         /// <returns></returns>        public string GetResule()        {             JavaScriptSerializer Serialize = new JavaScriptSerializer();             var list = SIMP.Sys_Employee                .Select(a => new { id = a.EmpId, EmpName = a.EmpName, PositionName = (a.Sys_Position!=null)?a.Sys_Position.PositionName:"无" })                .ToList();             return Serialize.Serialize(list);          }     }}

namespace AssemblyTest{    class Program    {        private static Program pro = new Program();         static void Main(string[] args)        {             pro.GetAssemblyInfo();            pro.LoadAssembly();              Console.ReadLine();        }         /// <summary>        /// 动态读取DLL,执行其中的方法        /// </summary>        public void LoadAssembly()        {            //DLL所在的绝对路径             Assembly assembly = Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory + "Entity.dll");            //注意写法：程序集.类名              Type type = assembly.GetType("Entity.GetData");            //获取类中的公共方法GetResule                                                          MethodInfo methed = type.GetMethod("GetResule");             //创建对象的实例            object instance = System.Activator.CreateInstance(type);            //执行方法  new object[]为方法中的参数            object result = methed.Invoke(instance, new object[] { });        }         /// <summary>        /// //获取程序集信息        /// </summary>        public void GetAssemblyInfo()        {            Type type = typeof(Program);            Assembly assembly = Assembly.GetExecutingAssembly();            Console.WriteLine("命名空间:{0}", type.Namespace);            Console.WriteLine("程序集:{0}", type.Assembly);            Console.WriteLine("类的名字{0}", type.Name);            Console.WriteLine("类的全部名字{0}", type.FullName);            Console.WriteLine("基类:{0}", type.BaseType);            Console.WriteLine("----------------------------");            Console.WriteLine("程序集的名称:{0}", assembly.GetName());            Console.WriteLine("程序集的全名:{0}", assembly.FullName);            Console.WriteLine("程序集的版本:{0}", assembly.GetName().Version);            Console.WriteLine("程序集的位置:{0}", assembly.Location);            Console.WriteLine("程序集所在目录:{0}", AppDomain.CurrentDomain.BaseDirectory);        }    }}