public static void Main(string[] args)
{
var manager = new MailManager();
var sms = new Sms(manager);
var pager = new Pager(manager);
manager.SimulateNewMail("Minsk", "Moskva", "Letter");
Thread.Sleep(1000);
sms.Unregister(manager);
Console.WriteLine();
manager.SimulateNewMail("Moskva", "Minsk", "SMS");
Console.ReadKey();
}
public void Unregister(MailManager mail)
{
mail.NewMail -= SmsMsg;
}
public Sms(MailManager mail)
{
mail.NewMail += SmsMsg;
}
public Pager(MailManager mail)
{
mail.NewMail += PagerMsg;
}