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妇人将信将疑道：这倒是，可我们连他姓名都不知晓，适才竟忘了询问。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 ~ ~两艘船看到张翠山、殷素素归来，也就罢战。4. Large investment, The density is too high when the water supply is not available, Misgurnus anguillicaudatus invested about 500 kg, Monopterus albus invested about 100 kg, and snails invested about 3,000 kg. These items were basically not sold back at all. The workers hired two, 6,000 a month. The reason was that they were too optimistic about the prospect, the workers did not pay attention, and they basically had to worry about themselves. Therefore, the breeding should be done slowly by their own family as far as possible, and people should be hired when the scale went up.是何薇吗？陈启说道。姚依因为要寻找失踪多年的父母进入了篁岭雾隐村，不料途中同伴们离奇失踪，寻找未果，后再次进去篁岭，却发现村里多了很多人，这些人似乎都跟一起事故有关。看着两千铁骑消失在山峦后，靖军才止住喊叫。