/// <summary>
/// 移除訂閱
/// </summary>
/// <param name="observea"></param>
public void Remove(IObservea observea)
{
_observeaList.Remove(observea);
}
/// <summary>
/// 訂閱
/// </summary>
/// <param name="observea"></param>
public void AddsubScription(IObservea observea)
{
_observeaList.Add(observea);
}
