static void Main(string[] args)
{
ConcreteDataObject obj = new ConcreteDataObject();
DataModel data = new DataModel {
X = 1, Y = 23
};
obj.SetDataState(data);
//具体观察者，指向具体目标
Observer tab = new TabObserver(obj);
Observer line = new LineObserver(obj);
//增加观察者
obj.Add(tab);
obj.Add(line);
//通知
obj.Notify();
//修改状态
data.X = 2;
obj.SetDataState(data);
obj.Notify();
Console.WriteLine("—————委托实现Notify—————");
ConcreteDataSubject obj1 = new ConcreteDataSubject();
data.Y = 50;
obj1.SetDataState(data);
//具体观察者，指向具体目标
TabObserver1 tab1 = new TabObserver1(obj1);
LineObserver1 line1 = new LineObserver1(obj1);
obj1.Update += new EventHandler(tab1.UpdateTab);
obj1.Update += new EventHandler(line1.UpdateLine);
obj1.Notify();
//设置数据
data.Y = 60;
obj1.SetDataState(data);
obj1.Notify();
Console.ReadLine();
}
public LineObserver1(ConcreteDataSubject subject)
{
_subject = subject;
_serverState = subject.GetDataState();
}