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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 ~ ~二零零九年的某一天，十九岁的方晴带着她研究古代建筑的男朋友景文来到了她的故乡老宅，老宅里的一张照片引起了景文的注意，照片里的女子安详，美丽，端庄，大方，仿佛一个幽梦般地凝固在墙上，百岁的太奶奶流云告诉他，这个女人叫桑采青，八十年前，她的美貌，她的传奇曾经一度流传。Add under [mysqld]Amplification attack is a special reflection attack. The special feature is that the reflector has the function of amplifying network traffic and is a common technical means in DDoS. Its basic principle is relatively simple. For a C/S service, if the Server-to-Client Response message is larger than the Client-to-Server Request message, the traffic is enlarged. In order to use amplification technology in DDoS, one condition needs to be met, that is, the services provided by Server are based on connectionless protocols such as UDP.“刀锋战士”系列完结篇。当末日启示即将实现，人类将全数成为吸血鬼的爪牙，刀锋求战士是唯一能够破解此道预言的人，于是吸血鬼王运用挑拨离间计策，误导人类将矛头指向半人半吸血鬼的刀锋战士。纳坤和萍慕是一对青梅竹马的好朋友，两人都是单身青年，所有人都觉得他们应该在一起，但纳坤却无法突破朋友的界限。萍慕生日那天两人互相约定，如果谁没有在35岁之前结婚，就认输并给对方10万元的红包。纳坤是继续这种没有未来的友谊还是打碎眼前的平静为自己争取爱情的一方天地？Key Issues Faced by Online Organizations: