理解 C# 中的委托和事件

 

参见：

http://www.chenjiliang.com/Article/View.aspx?ArticleID=4010&TypeID=34

 

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("Jimmy Zhang", EnglishGreeting);
            GreetPeople("张子阳", ChineseGreeting);
            Console.ReadKey();
        }
    }
}