static void Main(string[] args)
{
//具体主题
var concreteSubject = new ConcreteSubjectBoss();
var playGame = new PlayGame("小明", concreteSubject);
var watchMovie = new WatchMovie("小朱", concreteSubject);
concreteSubject.Attach(playGame);
concreteSubject.Attach(watchMovie);
concreteSubject.SubjectBossState = "老板过来了";
concreteSubject.Notify();
concreteSubject.SubjectBossState = "老板过来了";
concreteSubject.Detach(watchMovie);
concreteSubject.Notify();
}
