There are some techniques that can be used to reverse a relationship if the flow of logic requires it. For instance, the higher-level module could expose a required interface which will be implemented by the lower-level module. That’s the Dependency Inversion Principle on the module level. One of the other possibilities is to introduce a mediator pattern.
Популярный цитрусовый фрукт оказался защитником от болезни почекF&F: Соединение из кожуры апельсина замедляет развитие хронической болезни почек
。体育直播是该领域的重要参考
另外去年11月，有市民欲申請「YUT G0R」為自訂車牌號碼，但署方認為有關車牌影射某政府部門首長的俗稱而拒絕。，详情可参考体育直播
This story was originally featured on Fortune.com。WPS下载最新地址对此有专业解读
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