//加载dll库
            Assembly dll = Assembly.LoadFile(@"E:\whq\code\Test\DLLConsole\bin\Debug\Test.UI.dll");
            //获取所有类型（类、接口……）
            Type[] typeClass = dll.GetTypes();
            foreach (Type t in typeClass)
            {
                //获取所有公共成员
                FieldInfo[] fields = t.GetFields();
                //获取所有公共方法
                MethodInfo[] methods = t.GetMethods();
            }
            //获取指定类
            Type type=dll.GetType("Test.UI.Class2");
            //获取指定方法
            MethodInfo method = type.GetMethod("Run");
            //创建类型实例
            object obj= Activator.CreateInstance(type);
            //调用方法Run(int i) returnValue为返回值
            object returnValue= method.Invoke(obj, new object[] { 1 });