C#委托学习

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 委托学习
{
    class Program
    {
        static void Main(string[] args)
        {
            Program p = new Program();
            p.Greeting("谢峰", p.chineseGreeting);
            p.Greeting("sam", p.USGreeting);
            Console.ReadKey();
        }
        //声明一个委托
        public delegate void GreetingDelegate(string name);
        public void Greeting(string name, GreetingDelegate callback)
        {
            callback(name);
        }
        public void chineseGreeting(string name)
        {
            Console.WriteLine("你好，傻逼 "+name);
        }
        public void USGreeting(string name)
        {
            Console.WriteLine("hello,guy!"+" "+name);
        }
    }
}