protected virtual void Notify(BoiledEventArgs e)
{
foreach (IObserver observer in container)
{
observer.Update(e);
}
}
protected virtual void OnBoiled(BoiledEventArgs e)
{
base.Notify(e);
}
private bool isDisplayedType = false; // 标记变量，标示是否已经打印过
#endregion Fields
#region Methods
public void Update(BoiledEventArgs e)
{
// 打印产地和型号，只打印一次
if (!isDisplayedType)
{
Console.WriteLine("{0} - {1}: ", e.Area, e.Type);
Console.WriteLine();
isDisplayedType = true;
}
if (e.Temperature < 100)
{
Console.WriteLine(
String.Format("Alarm".PadRight(7) + "：水快烧开了，当前温度：{0}。", e.Temperature));
}
else
{
Console.WriteLine(
String.Format("Alarm".PadRight(7) + "：水已经烧开了！！"));
}
}
public void BoilWater()
{
for (int i = 0; i < 99; i++)
{
temprature = i + 1;
if (temprature > 97)
{
BoiledEventArgs e = new BoiledEventArgs(temprature, type, area);
OnBoiled(e);
}
}
}