反射技术实例

namespace ReflectionExample
{
    class Class1 
    {
        [STAThread]
        static void Main(string[] args)
        {
            Console.WriteLine("列出程序集所有类型");
            Assembly a = Assembly.LoadFrom("ConsoleApplication1.exe");
            Type[] mytypes = a.GetTypes();//获取程序集所定义的类型
            foreach (Type t in mytypes)
            {
                Console.WriteLine(t.Name);//列出当前类型成员的名字
            }
            Console.ReadLine();
            Console.WriteLine("列出HelloWorld中所有的方法");
            Type ht=typeof(HelloWorld);
            MethodInfo []mif = ht.GetMethods();
            foreach (MethodInfo mf in mif)
            {
                Console.WriteLine(mf.Name);//列出当前方法成员的名字
            }
            Console.ReadLine();
            Console.WriteLine("实例化HelloWorld,并调用SayHello方法");
            Object obj = Activator.CreateInstance(ht);
            string[] s ={ "ZhenLei" };
            Object objname = Activator.CreateInstance(ht, s);
            BindingFlags flags = (BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance);
            MethodInfo msayhello = ht.GetMethod("SayHello");
            msayhello.Invoke(obj,null);
            msayhello.Invoke(objname, null);
            Console.ReadLine();
        }
    }
    public class HelloWorld
    {
        string myname = null;
        public HelloWorld(string name)
        { 
            myname = name;
        }
        public HelloWorld()
            : this(null)
        { 
        
        }
        public string Name
        {
            get { return myname; }
        }
        public void SayHello()
        {
            if (myname == null)
            {
                Console.WriteLine("Hello World!");
            }
            else
            {
                Console.WriteLine("Hello,"+myname);
            }
        }
    }
}