六个教练伦的好爽

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 ~ ~《春风化雨》讲述10岁男孩蓝泾雨和8岁女孩金悦等一群性格各异、遭遇不同的山村留守儿童，在主人公张运老人自办的“留守儿童助教中心”一年间的生活、学习、成长的经历。故事主轴以马雅人的2012/12/21末日预言贯穿。末日不如预言发生，但是贪婪的人类对自然和社会的无度需索，予取予求，终于有一天新能源厂事故，造就人类自食恶果，文明毁灭。Combination mode is sometimes called part-whole mode. It is more convenient to deal with problems like tree structure. Look at the diagram:抗战期间，中共特工茅远征救下了孤儿常平安，自己却被军统特务曹若飞所杀。抗战胜利后，已经与王小玉　　袁牧野得知后坚决拒绝，但沙小修固执坚持，并以此要挟不做手术，心地善良的袁牧野为了让她尽快手术被迫瞒着妻子林禾答应。 捐献很成功，林禾怀孕后，意外发现捐卵不是盲供，而且丈夫与其还有暧昧关系，一气之下要打胎。沙小修为了保住这个孩子，毅然割腕自杀，林禾感其真诚，同意保住孩子。