//接收報紙(多家報社,想知道是來自哪家報社報紙)
        public void ReceiveNewspaper2(Object sender, PublisherArgs newspaper)
        {
            if (sender is Publisher_MulticastDelegate)
            {
                newspaper.Newspaper.PublisherName = (sender as Publisher_MulticastDelegate).Name;
            }

            if (sender is Publisher_MulticastDelegate2)
            {
                newspaper.Newspaper.PublisherName = (sender as Publisher_MulticastDelegate2).Name;
            }
            this.Newspaper = newspaper.Newspaper;
        }
        //寄送報紙(多家報社)
        public void SendNewspaper2(Newspaper_MulticastDelegete newspaper)
        {
            //使用委託
            if (_Subscribers2 != null)
            {
                //_Subscribers(newspaper);

                //如果在多播委託時產生例外:
                //將_Subscribers中的調用委託函數列表迭代出來
                foreach (Subscribers2 hander in _Subscribers2.GetInvocationList())
                {
                    try
                    {
                        //每一個元素都是Subscribers類型函數,調用hander(調用Subscribers2()的當前類,參數);
                        hander(this, new PublisherArgs(new Newspaper_MulticastDelegete()));
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine(ex.Message);
                    }
                }
            }
        }
        //寄送報紙
        public void SendNewspaper(Newspaper_MulticastDelegete newspaper)
        {
            newspaper.PublisherName = this.Name;
            //使用委託
            if (_Subscribers != null)
            {
                //_Subscribers(newspaper);

                //如果在多播委託時產生例外:
                //將_Subscribers中的調用委託函數列表迭代出來
                foreach (Subscribers hander in _Subscribers.GetInvocationList())
                {
                    try
                    {
                        //每一個元素都是Subscribers類型函數,調用hander(參數);
                        hander(newspaper);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine(ex.Message);
                    }
                }
            }
        }
 public PublisherArgs(Newspaper_MulticastDelegete newspaper)
 {
     this.Newspaper = newspaper;
 }
 //接收報紙
 public void ReceiveNewspaper(Newspaper_MulticastDelegete newspaper)
 {
     this.Newspaper = newspaper;
 }