static void Main(string[] args)
{
Dog dog = new Dog();
Host host = new Host(dog);
//当前时间，从2018年12月31日23:59:50开始计时
DateTime now = new DateTime(2018, 12, 31, 23, 59, 57);
DateTime midnight = new DateTime(2019, 1, 1, 0, 0, 0);
//等待午夜的到来
Console.WriteLine("时间一秒一秒地流逝... ");
while (now < midnight)
{
Console.WriteLine("当前时间: " + now);
System.Threading.Thread.Sleep(1000); //程序暂停一秒
now = now.AddSeconds(1); //时间增加一秒
}
//午夜零点小偷到达,看门狗引发Alarm事件
Console.WriteLine("/n月黑风高的午夜: " + now);
Console.WriteLine("小偷悄悄地摸进了主人的屋内... ");
//创建事件参数
NumberThiefEventArgs e = new NumberThiefEventArgs(3);
dog.OnAlarm(e);
Console.WriteLine();
Console.ReadKey();
}
//3.编写引发事件的函数，注意，现在的结果是多出来了一个参数
public void OnAlarm(NumberThiefEventArgs e)
{
if (this.Alarm != null)
{
Console.WriteLine("/n狗报警: 有小偷进来了,汪汪~~~~~~~/n");
this.Alarm(this, e);
}
}
//4.编写事件的处理程序，参数中包含了numberofThief信息
void HostHandlerAlarm(object sender, NumberThiefEventArgs e)
{
if (e.numberOfThief <= 1)
{
Console.WriteLine("主 人: 抓住了小偷！");
}
else
{
Console.WriteLine("主 人:打110报警，我家来了{0}个小偷！", e.numberOfThief);
}
}
