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公子赠我十只风铃，我可以拆台，也可以捧场。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 ~ ~Account No.: 824880031410001FIG. 3 is an enlarged schematic view of another partial structure of FIG. 1.Application layer attack本剧以唐老师（傅彪饰）、于老师（吴越饰）、房老师（杨青饰）与学生们的关系为主线。旁涉以唐老师与张玲母（沈丹萍饰）动荡不安的情感线索、于老师青春浪漫的爱情。面对高考、面对命运选择与承诺时的巨大精神压力、各种光怪陆离的表现和青春的冲动。学生家长们对孩子前途的期待、担忧以及各种出格离奇的表现……奈何就这样被项羽生生的夺走了，如今虽然有机会再次走进这座城池，可是他的主人依旧不是自己。