using System;

using System.Collections;

using System.Collections.Generic;

using System.IO;

using System.Reflection;

namespace codeTest

{

    class Program

    {

        static void Main(string[] args)

        {

            string str = "Hello";

            //C#中基于System.Type的反射

            Type t = str.GetType();

            Console.WriteLine(t.FullName);

            Type t2 = Type.GetType("System.String", false, true);

            Console.WriteLine(t2.FullName);

            Type t3 = typeof(string);

            Console.WriteLine(t3.FullName);

            //C#中对于方法、属性等的反射

            //GetMethods(t, BindingFlags.Public | BindingFlags.Instance);

            Console.WriteLine("{0}", t.GetMethod("Copy"));

            t.GetProperties();

            t.GetFields();

            //C#中动态加载以及推迟绑定

            //获取程序集

            Assembly assembly = Assembly.Load("codeTest");

            //Assembly assembly2 = Assembly.LoadFrom("codeTest.dll");

            //从程序集中获取指定对象类型;

            Type type = assembly.GetType("codeTest.User");

            //使用Activator创建实例(无参数构造函数)

            var user1 = Activator.CreateInstance(type);

            //使用Activator创建实例(带参数构造函数)

            var user2 = Activator.CreateInstance(type, "薄暮");

            //使用Assembly创建实例(无参数构造函数)

            var user3 = assembly.CreateInstance("codeTest.User");

            //反射无参构造函数

            ConstructorInfo constructor1 = type.GetConstructor(new Type[] { });

            var user4 = constructor1.Invoke(new object[] { });

            //反射有参构造函数

            ConstructorInfo constructor2 = type.GetConstructor(new Type[] { typeof(string) });

            var user5 = constructor2.Invoke(new object[] { "薄暮" });

            //调用public函数(无参数)

            type.InvokeMember("PublicShow",

                              BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Instance, null, user1,

                              null);

            //调用public函数(带参数)

            string returnValue =

                type.InvokeMember("GetString",

                                  BindingFlags.InvokeMethod | BindingFlags.OptionalParamBinding, null, user1,

                                  new object[] { "薄暮" }) as string;

            // 调用静态方法

            string returnValue2 =

                type.InvokeMember("StaticMethod", BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Static,

                                  null, null, new object[] { }) as string;

            // 调用私有方法 .

            type.InvokeMember("PrivateShow",

                              BindingFlags.InvokeMethod | BindingFlags.NonPublic | BindingFlags.Instance, null, user1,

                              new object[] { });

            //反射属性

            var Name =

                type.InvokeMember("Name", BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance, null,

                                  user1, new object[] { }) as string;

            //设置属性(设置Name属性为"新属性")

            type.InvokeMember("Name", BindingFlags.SetProperty | BindingFlags.Public | BindingFlags.Instance, null,

                                  user1, new object[] { "新属性" });

            //反射字段

            string Field =

                type.InvokeMember("Field", BindingFlags.GetField | BindingFlags.Public | BindingFlags.Instance, null,

                                  user1, new object[] { }) as string;

            //设置字段（设置Field字段为"新字段"）

            type.InvokeMember("Field", BindingFlags.SetField | BindingFlags.Public | BindingFlags.Instance, null,

                                  user1, new object[] { "新字段" });

            Console.ReadLine();

        }

        public static void GetMethods(Type t, BindingFlags f)

        {

            MethodInfo[] info = t.GetMethods(f);

            foreach (var item in info)

            {

                Console.WriteLine("{0}", item.Name);

            }

        }

    }

    public class User

    {

        //字段

        public string Field;

        //属性

        public string Name { get; set; }

        //构造函数

        public User()

        {

            this.Name = "无参构造";

        }

        public User(string name)

        {

            this.Name = name;

        }

        //public函数

        public void PublicShow()

        {

            Console.WriteLine(string.Format("反射调用一个public方法"));

        }

        //private函数

        private void PrivateShow()

        {

            Console.WriteLine(string.Format("反射调用一个Private方法"));

        }

        //static函数

        public static string StaticMethod()

        {

            return "反射调用了一个Static方法";

        }

        //带参带返回值函数

        public string GetString(string name)

        {

            return string.Format("大家好,我的名字是:{0}!", name);

        }

        //事件

        public event EventHandler eventHandler;

        //事件处理函数

        public void DoEvent()

        {

            if (eventHandler != null)

                eventHandler(null, EventArgs.Empty);

        }

    }

}