帮小弟写C#委托啊，3Q啊

Question

using System;
using System.Collections;
using System.Text;namespace DelegateTest{public delegate void GreetingDelegate(string name);public class GreetingManager {
public GreetingDelegate delegate1; public void GreetPeople(string name){
if(delegate1 != null) {
delegate1(name);
}
}
}class Program{
private static void EnglishGreeting(string name){
Console.WriteLine("Monring,"+name);
} private static void ChineseGreeting(string name){
Console.WriteLine("早上好,"+name);
} public static void Main(string[] args){
GreetingManager gm = new GreetingManager();
gm.delegate1 = EnglishGreeting;//错误：在不带括号的情况下使用方法，怎么该啊
gm.delegate1 += ChineseGreeting; gm.GreetPeople("张三");
}
}}

Answer 1

using System;
using System.Collections.Generic;
using System.Text;namespace Delegate {
     //定义委托，它定义了可以代表的方法的类型
     public delegate void GreetingDelegate(string name);
        class Program {           private static void EnglishGreeting(string name) {
               Console.WriteLine("Morning, " + name);
           }           private static void ChineseGreeting(string name) {
               Console.WriteLine("早上好, " + name);
           }           //注意此方法，它接受一个GreetingDelegate类型的方法作为参数
           private static void GreetPeople(string name, GreetingDelegate MakeGreeting) {
               MakeGreeting(name);
            }           static void Main(string[] args) {
               GreetPeople("张三", EnglishGreeting);
               GreetPeople("李四", ChineseGreeting);
               Console.ReadKey();
           }
        }
    }

Answer 2

输入： Console.WriteLine();
输出： Console.ReadLine();

Answer 3

FrameWork 2.0运行完全没问题。