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Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.According to the same method, WeChat can be installed again. Officials say it can support 100 WeChat. People will not be so crazy, ha ha.在这部妙趣横生的科学剧集中，古怪生物和大自然母亲担任旁白，带你一窥地球上最不可思议的动物的生活。　　本剧由Eliot Laurence执笔并联合制作，由Nicole Kassell执导，讲述了Nail Artisan of Manatee County美甲沙龙里的五位个性迥异而阴暗的美甲师的成长故事，剧情中将更多的着墨与他们背后的故事而非美甲。Carrie Preston、Harold Perrineau、Jenn Lyon、Judy Reyes、Jack Kesy、Karrueche Tran、Kevin Rankin和Jason Antoon也将参演。在这部刺激的剧集中，飞车驰骋的越野摩托车少年们尝试击败对手，激发碧池最大潜能，努力赢得胜利孩子们长大后都离开了老家，只留下一对结缡了50年的老年夫妇。太太有喜子（倍赏千惠子 饰）最近对丈夫胜（藤龙也 饰）非常不满，跟他说话都不回应，自己寂寞得只能跟家里养的猫咪说话。她跟女儿菜穗子（市川实日子 饰）抱怨丈夫，某天有喜子甚至终于鼓起勇气打算对胜提出离婚…。玩了一会，张念祖牵着红椒手道：二姑姑，咱们去园子挖菜好不好？李山急忙大叫：挖蛐蟮钓鱼。