关于C#中GUI编程的标准事件问题

public delegate void EventHandler(object sender,EventArgs e)

 /// <summary>
    /// 报社
    /// </summary>
    class NewspaperOffice 
    {
        public event EventHandler StartPublishPaper;                //1、声明事件

        public void Publish()
        {
            Console.WriteLine("已发布报纸！");
            StartPublishPaper(this,null);               //3、触发事件，通知订阅者收报纸进行阅读
        }
    }

 /// <summary>
    /// 阿辉 订阅者
    /// </summary>
    class AhuiPeople 
    {
        public AhuiPeople(NewspaperOffice npo)
        {
            npo.StartPublishPaper += SubscriptinPaper;            //2、订阅事件
        }
        
        void SubscriptinPaper(object sender,EventArgs e)
        {
            Console.WriteLine("阿辉接收到报纸，开始阅读！");
        }
    }

 static void Main(string[] args)
        {
            NewspaperOffice npo = new NewspaperOffice();
            AhuiPeople ahuiPeople = new AhuiPeople(npo);

            //报社发报
            Console.WriteLine("报社计划开始发报！");
            npo.Publish();
            Console.ReadKey();
        }