public void FaxMsg(object sender, NewMailEventArgs e)
{
MailManager tmep = sender as MailManager;
int x = tmep.test;
Console.WriteLine($"In Pager: from:{e.From}, to:{e.To}, subject:{e.Subject}");
}
static void Main(string[] args)
{
MailManager mailManager = new MailManager();
Fax fax = new Fax(mailManager);
Pager pager = new Pager(mailManager);
mailManager.ReceiveEmail("boone", "james", "吃饭了吗？");
Console.ReadLine();
}
public Fax(MailManager mailManager)
{
this.mailManager = mailManager;
this.mailManager.NewEmail += FaxMsg;
}