The Design Patterns approach uses an abstract Subject class and an Observer interface to break the dependency between the Subject object and the Observerobjects.
那么什么时候使用抽象类,什么时候使用接口呢?
So when to use interfaces and when to useabstract classes?
请注意,许多软件库都使用抽象类和接口;
Note that many software libraries use both abstract classes and interfaces;
在java中,我们使用抽象类和接口来实现抽象。
In Java, we use subjective category and interface to accomplish abstraction.
有趣的是,他们发现男性比女性更容易使用抽象的语言。
Men are more likely than women to use more abstract language.
通过使用抽象的,我希望这将是一个永恒的书及时的话题。
Through the use of abstraction, I hope this will be a timeless book on a timely topic.
此概念可以延伸到使用抽象数学概念的动力系统,以演化参数表示其特性。
The concept can be extended to the abstract mathematical notion of a dynamical system using an evolution parameter.
它的核心是CngKey密钥容器类,该类提供了CNG密钥的存储和使用抽象。
Central to this group is the CngKey key container class, which abstracts the storage and use of CNG keys.
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