//https://msdn.microsoft.com/en-us/library/ee850490(v=vs.110).aspx
static void Main(string[] args)
{
BaggageHandler provider = new BaggageHandler();
ArrivalsMonitor observer1 = new ArrivalsMonitor("BaggageClaimMonitor1");
ArrivalsMonitor observer2 = new ArrivalsMonitor("SecurityExit");
provider.BaggageStatus(712, "Detroit", 3);
observer1.Subscribe(provider);
provider.BaggageStatus(712, "Kalamazoo", 3);
provider.BaggageStatus(400, "New York-Kennedy", 1);
provider.BaggageStatus(712, "Detroit", 3);
observer2.Subscribe(provider);
provider.BaggageStatus(511, "San Francisco", 2);
provider.BaggageStatus(712);
observer2.Unsubscribe();
provider.BaggageStatus(400);
provider.LastBaggageClaimed();
}
/// <summary>
/// http://msdn.microsoft.com/en-us/library/ee850490(v=vs.110).aspx 初始的讲解
/// http://msdn.microsoft.com/en-us/library/ee817669.aspx 探索示例，有图例
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
BaggageHandler provider = new BaggageHandler();
ArrivalsMonitor observer1 = new ArrivalsMonitor("BaggageClaimMonitor1");
ArrivalsMonitor observer2 = new ArrivalsMonitor("SecurityExit");
provider.BaggageStatus(712, "Detroit", 3);
observer1.Subscribe(provider); //订阅之后，provider会向observer1推送所有的消息
provider.BaggageStatus(712, "Kalamazoo", 3); //添加新的行李后，会遍历所有的观察者，然后推送消息 此时只有一个
provider.BaggageStatus(400, "New York-Kennedy", 1); //添加新的行李后，会遍历所有的观察者，然后推送消息 此时只有一个
//此信息为重复信息，提供者不会进行判断，最后导致提供者有2个相同的消息推送给观察者
//但是提供者推送的时候，观察者会自行区分重复的信息
provider.BaggageStatus(712, "Detroit", 3); //添加新的行李后，会遍历所有的观察者，然后推送消息 此时只有一个
observer2.Subscribe(provider); //订阅之后，provider会向observer2推送所有的消息
provider.BaggageStatus(511, "San Francisco", 2); //添加新的行李后，会遍历所有的观察者，然后推送消息 此时有两个观察者
provider.BaggageStatus(712); //卸货航班编号712的行李
observer2.UnSubscribe(); //取消订阅
provider.BaggageStatus(400); //卸货航班编号400的行李
provider.LastBaggageClaimed();
Console.ReadKey();
}