摘要:
The Abstract Factory Design Pattern provides a way to encapsulate a group of individual factories that have a common theme without specifying their co 阅读全文
posted @ 2019-05-22 22:15
云霄宇霁
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摘要:
The Observer design pattern defines a one-to-many dependency between objects so that when one object changes states, all its dependents are notified a 阅读全文
posted @ 2019-05-22 21:54
云霄宇霁
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