public PeopleTwo(Ios ios)
{
ios.IosEvent += () =>
{
Console.WriteLine("yi said descrementer");
};
}
public PeopleJia(Ios ios)
{
ios.IosEvent += () =>
{
Console.WriteLine("jia said desCrementer");
};
}
static void Main(string[] args)
{ //委托和事件的比较，事件是阉割的委托实例
Ios ios = new Ios(3500);
ios.Iosdele = () => { Console.WriteLine("delegate1"); };
ios.Iosdele += () => { Console.WriteLine("delegate2"); };
ios.Iosdele += () => { Console.WriteLine("delegate3"); };
ios.Iosdele.Invoke();//委托实例可以在类外被调用，而事件不可以
//ios.IosEvent = () => { Console.WriteLine("event0"); };
ios.IosEvent += () => { Console.WriteLine("event1"); };
ios.IosEvent += () => { Console.WriteLine("event2"); };
ios.IosEvent -= () => { Console.WriteLine("event2"); };
//标准的点击事件
ClickEvent en = new ClickEvent();
ClickEventArgs eventArgs = new ClickEventArgs();
en.clickEvent += Btn_click;
en.Click(eventArgs);
//利用观察者模式案例
PeopleJia jia = new PeopleJia(ios);
PeopleTwo two = new PeopleTwo(ios);
ios.Price = 3200;
Console.ReadKey();
}