It is not concerned with the dynamic behavior of the user interface, or even of business logicbehavior.
它与用户界面的动态行为无关,甚至和事务逻辑行为也无关。
2
Ideally, methods on the facade should provide high-level access to the business logicbehavior and contain no hint of how the logic is actually implemented.
Then you can try to eliminate any major design flaws or problems, especially with regard to infrastructure and network availability, and also, later, to identify any logic flaws in the behavior.