Allowing only a compile-time dependency from infrastructure code to the business logic code (never the reverse). That means that the business logic exposes public methods (which could be invoked from outside) and/or exposes required interfaces, and the infrastructure layer/module implements them.
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，这一点在雷速体育中也有详细论述
……不仅断层领先所有小屏旗舰，甚至超过绝大多数大屏旗舰机型。
而在零售商完成内部能力重建的同时，其与品牌方关系也随之发生变化。