static void Main(string[] args)
{
//连接事件发布程序和订阅器
var dealer = new CarDealer();
var michael = new Consumer("Michael");
//dealer.NewCarInfo+=new EventHandler<CarInfoEventArgs>(michael.NewCarIsHere);
//等价于
dealer.NewCarInfo += michael.NewCarIsHere;
dealer.NewCar("Mercedes");
var nick = new Consumer("Nick");
dealer.NewCarInfo += nick.NewCarIsHere;
dealer.NewCar("Ferrari");
Console.ReadKey();
}