C＃中委托的应用

C#中委托的应用案例

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

namespace ConsoleApp18
{
       
    class Monster
    {
    
        public Action<Monster> deadDoSomething;

        public int money = 10;

        public void Dead()
        {
    
            if(deadDoSomething!=null)
            {
    
                deadDoSomething(this);
            }
            deadDoSomething = null;
        }

    }

    class Player
    {
    
        private int myMoney = 0;

        public void MonsterDeadDoSomething(Monster m)
        {
    
            myMoney += m.money;
            Console.WriteLine("现在有{0}钱", myMoney);
        }
    }

    class Panel
    {
    
        private int nowShowMoney = 0;

        public void MonsterDeadDoSomething(Monster m)
        {
    
            nowShowMoney += m.money;
            Console.WriteLine("现在有{0}元钱", nowShowMoney);
        }
    }

    class CJ
    {
    
        private int nowKillMonsterNum = 0;

        public void MonsterDeadDo(Monster m)
        {
    
            nowKillMonsterNum += 1;
            Console.WriteLine("当前击杀了{0}怪物", nowKillMonsterNum);
        }
    }

    class Program
    {
    
        static void Main(string[] args)
        {
    
            Monster monster = new Monster();
            Player p = new Player();
            Panel panel = new Panel();
            CJ cj = new CJ();

            monster.deadDoSomething += p.MonsterDeadDoSomething;
            monster.deadDoSomething += panel.MonsterDeadDoSomething;
            monster.deadDoSomething += cj.MonsterDeadDo;

            monster.Dead();

            Monster monster2 = new Monster();
            monster2.deadDoSomething += p.MonsterDeadDoSomething;
            monster2.deadDoSomething += panel.MonsterDeadDoSomething;
            monster2.deadDoSomething += cj.MonsterDeadDo;

            monster2.Dead();

        }
    }
}