C#委托事件

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

class Program
    {
        static void Main(string[] args)
        {

            Boss boss = new Boss();
            Charge c = new Charge();
            Employee emp = new Employee();

            //订阅事件
            emp.PlayGame += new Employee.JoinPlayGame(c.StopGame);
            emp.PlayGame+=new Employee.JoinPlayGame(boss.YourOver);

            Console.WriteLine("Game?");
            if(Console.ReadLine().Equals("Yes"))
                emp.StartGame();
            else
                Console.WriteLine("After you are the boss!");

        }
    }

    class Employee
    {

         public delegate void JoinPlayGame();
         public event JoinPlayGame PlayGame;

         public void StartGame()
         {
             if (PlayGame != null)
                 PlayGame();
         }

    }

    class Boss
    {
        public void YourOver()
        {
            Console.WriteLine("Out!");
        }
    }

    class Charge
    {
        public void StopGame()
        {
            Console.WriteLine("StopGame!");
        }
    }