static void Main(string[] args)
{
//Heater heater = new Heater();
//Alarm alarm = new Alarm();
//heater.BoilEvent += alarm.MakeAlert;//注册方法
//heater.BoilEvent += (new Alarm()).MakeAlert;//给匿名对象注册方法
//heater.BoilEvent += Display.ShowMsg; //注册静态方法
//heater.BoilWater();
//Console.ReadKey();
BookStore store = new BookStore();
Customer c1 = new Customer();
BookHandler bookhandler = new BookHandler(c1.store_OnNewBook);
Customer c = new Customer()
Console.ReadKey();
}
public void Register(BookStore store)
{
store.OnNewBook += new BookHandler(store_OnNewBook);
}