public static void ShowMsg(Object sender, Heater.BoiledEventArgs e)
{
Heater heater = (Heater)sender;
Console.WriteLine("Alarm：{0} - {1}: ", heater.area, heater.type);
Console.WriteLine("Display：水快烧开了，当前温度：{0}度。", e.temperature);
Console.WriteLine();
}
public void MakeAlert(Object sender, Heater.BoiledEventArgs e)
{
Heater heater = (Heater)sender;
Console.WriteLine("Alarm: {0} - {1}", heater.type, heater.area);
Console.WriteLine("Alarm: 嘀嘀嘀，水已经 {0} 度了：", e.temperature);
Console.WriteLine();
}
static void Main(string[] args)
{
Heater ht = new Heater();
Alarm alarm = new Alarm();
ht.Boiled += alarm.MakeAlert;
ht.Boiled += (new Alarm()).MakeAlert;
ht.Boiled += Display.ShowMsg;
ht.BoildWater();
}
static void Main(string[] args)
{
// 为什么在此处不能引用实例方法
GreetPeople("zll", EnglishGreeting);
GreetPeople("周梁亮", ChineseGreeting);
//GreetingDelegate delegate1, delegate2;
//delegate1 = EnglishGreeting;
//delegate1 += ChineseGreeting;
GreetingDelegate delegate1 = new GreetingDelegate(EnglishGreeting);
delegate1 += ChineseGreeting;
//delegate2 = ChineseGreeting;
//GreetPeople("zll", delegate1);
//GreetPeople("周梁亮", delegate1);
//delegate1("zll");
GreetPeople("zll", delegate1);
delegate1 -= ChineseGreeting;
GreetPeople("zll", delegate1);
// 使用委托可以将多个方法绑定到同一个委托变量，当调用此变量，可以依次调用
// 所有绑定的方法，返回最后一个方法的结果。
// delegate2("周梁亮");
//委托就相当于是一种类型，可以进行复制，只是可以将方法复制给委托
// 多个方法绑定委托。
GreetingManager gm = new GreetingManager();
// gm.MakeGreet = EnglishGreeting;
// 事件“BoWenXuexiDelegate.GreetingManager.MakeGreet”
// 只能出现在 += 或 -= 的左边(从类型“BoWenXuexiDelegate.GreetingManager”中使用时除外)
gm.MakeGreet += ChineseGreeting;
gm.GreetPeople("zll and zyd");
Heater ht = new Heater();
Alarm alarm = new Alarm();
ht.BoilEvent += alarm.MakeAlert;
ht.BoilEvent += (new Alarm()).MakeAlert;
ht.BoilEvent += Display.ShowMsg;
ht.BoilWater();
}
