// Use this for initialization
void Start()
{
//WeatherStation sw = new WeatherStation();
//BillboardA a = new BillboardA();
//BillboardB b = new BillboardB();
//BillboardC c = new BillboardC();
//sw.Update(a,b,c);
ConcreteSubject1 sub1 = new ConcreteSubject1();
ConcreteObserver1 ob1 = new ConcreteObserver1(sub1);
sub1.RegisterObserver(ob1);
ConcreteObserver2 ob2 = new ConcreteObserver2(sub1);
sub1.RegisterObserver(ob2);
sub1.SubjectState = "温度 90";
}
static void Main(string[] args)
{
var subject = new ConcreteSubject();
var observer1 = new ConcreteObserver1();
subject.Attach(observer1);
var observer2 = new ConcreteObserver2();
subject.Attach(observer2);
var observer3 = new ConcreteObserver3();
subject.Attach(observer3);
subject.BusinessLogic();
subject.BusinessLogic();
subject.Detach(observer3);
subject.BusinessLogic();
}