public static void CarIsAlmostDoomed(object sender, CarEventArgs e)
{
//如果接受者想与发送事件的对象交互，我们可以显示强制类型转换System.Object为Car类型，这样就可以
// 使用传递给事件通知对象中的任何公共成员
if (sender is Car)
{
Car c = sender as Car;
Console.WriteLine("=>Critical Message from {0}: {1}", c.PetName, e.msg);
}
}
public static void CarExploaded(object sender, CarEventArgs e)
{
Console.WriteLine(e.msg);
}
public static void CarAboutToBlow(object sender, CarEventArgs e)
{
Console.WriteLine("{0} says: {1}", sender, e.msg);
}
