/// <summary>
/// 这种是 直接加
/// </summary>
/// <param name="we"></param>
public void AddListner(WeatherNoticeEvent we)
{
if (WE == null)
{
WE = we; //首次
}
else
{
WE += we;
}
}
/// <inheritdoc />
protected Observer(ISubject subject, string name)
{
this.subject = subject;
this.name = name;
//无法在构造函数里 直接添加观察者 但是 可以 利用委托 做到
// this.subject.AddObserver(this);
//利用委托
WeatherNoticeEvent ShWNE = new WeatherNoticeEvent(Update);
subject.AddListner(ShWNE);
}
