static void Main(string[] args)
{
//发布者类实例化
InCrementer inCrementer = new InCrementer();
//订阅者类实例化
Dozens dozens = new Dozens(inCrementer);
//触发事件
inCrementer.DoCount();
Console.WriteLine("Number of dozens = {0}", dozens.DozensCount);
}
public Dozens(InCrementer inCrementer)
{
DozensCount = 0;
//订阅事件: 为事件增加处理程序
inCrementer.CountedADozen += IncrementerDozenscount;
}