"there was a simple fret at the top of the walls"
业务调整的核心是:向以中介为特点的金融服务方向转型。
Observer was the key pattern for handling notification of events within the architecture.观察器是用来处理体系结构内的事件通知的关键模式。
The two key operations in this pattern are propagation and harvesting.模式中的两个关键操作是传播和获取。