delegate 将方法当做参数用...[简单demo]

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("Zhangsan", EnglishGreeting);
GreetPeople("张三", ChineseGreeting);
Console.ReadKey();
}
}
}

输出如下：
Morning, Zhangsan

早上好，张三