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Although there are subclasses in java that implement the interfaces of the parent class, But I think javascript can be different from java, It is possible that the parent class in java is an empty class, Subclasses to implement the interface of the parent class, in javascript, I think the common code is completely written in the parent function. If the business logic needs to be changed in the future, or new business logic is added, we can completely use subclasses to rewrite the parent class, so the code has strong scalability and is easier to maintain. Since I am not a professional java, please understand if there is any mistake in describing the knowledge points in java ~ ~《你的孩子不是你的孩子》改编自作家吴晓乐的同名小说，由六位编剧将书中的九个故事改编成五个单元。书中深刻描述家庭中，因追逐分数的考试制度而扭曲的亲子关系，以及单一的成功价值观忽略了个体差异性的高压社会。Center aileron and rudder C C-Reuse code. ? We sometimes like to copy code from previously written projects to new projects, which is no problem, but a better way is to avoid duplicate code bases through module references.杨长帆伸出一根手指，夷人，知道自己是夷人，知道自己周围有很多与自己相似的夷人。B) Use the tool BlueJ. The biggest advantage of BlueJ is that it provides a simple class diagram. As I did in the concise design pattern Java, I seldom draw class diagrams specifically, but take screenshots in BlueJ. When students write demonstration programs on the computer, they often look at his class diagram first to judge whether his program is correct or not, and then look at the source code when necessary.Number of episodes: 70 episodes