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

namespace _12事件
{
    public delegate void MyDel(int temp);
    class Heater
    {
        public event MyDel del;
        private int temp;

        public int Temp
        {
            get { return temp; }
            set { temp = value; }
        }
        public void Heat()
        {
            for (int i = 0; i < 100; i++)
            {
                temp = i;
                if (temp > 95)
                {
                    if (del != null)
                    {
                        del(temp);
                    }
                }
            }
        }
    }
}

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

namespace _12事件
{
    class Alarmer
    {
        public void Alarm(int temp)
        {
            Console.WriteLine("滴滴滴，报警！！水已经{0}度了", temp);
        }
    }
}

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

namespace _12事件
{
    class ShowTemper
    {
        public void ShowTemp(int temp)
        {
            Console.WriteLine("屏幕显示：当前温度{0}度", temp);
        }
    }
}

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

namespace _12事件
{
    class Program
    {
        static void Main(string[] args)
        {
            Heater heater = new Heater();
            Alarmer alarmer = new Alarmer();
            ShowTemper showtemper = new ShowTemper();
            heater.del += alarmer.Alarm;
            heater.del += showtemper.ShowTemp;

            heater.Heat();
            //heater.del(heater.Temp);
            Console.ReadKey();
        }
    }
}