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大雪纷飞，北风呼啸，悍匪五黑刀与日本浪人在一处村落中绞杀的血雨腥风。杨仁、杨运昌和樵夫、拐五爷率领抗匪队夺路救人，尽力保护着村中百姓。杨仁的抗匪队剿灭了五黑刀，赶走了夏山吼，使一方百姓又恢复了往日的平静。然而好景不长，几年之后，新的一轮匪患又悄然兴起，一时间各种势力的角逐再一次打破了百姓生活的安宁，杨氏家族又不同程度的搅入了与土匪的纠缠之中虎踞龙盘。一次突如其来的绑架案把早已随父亲一同收山的杨运昌再一次推向了刀光剑影的江湖之中……很快就会向西楚国发起进攻，齐楚之战一触即发。任职警界的硕做事得过且过，其被动、消极的态度为警犬Rocky所鄙视，更处处刁难他，教他吃尽不少苦头。后Rocky在一次行动中受伤，硕于心不忍，决定收养它。The above is only a model of "Long En" bicycle, If you need to generate other types of bicycles, Other subclasses can be written. The most important advantage of factory mode is that some of the same methods can be implemented. We can write code in the parent class for these same methods. If we need to implement specific business logic, we can rewrite the parent class's methods in the subclass to implement our own business logic. In terms of professional terms, there are two points: First, weaken the coupling between objects and prevent code duplication. Instantiating a class in a method eliminates repetitive code. Second: Repetitive code can be written in the parent class. Subclasses inherit all member attributes and methods of the parent class. Subclasses only focus on implementing their own business logic.1. China Civil Aviation Aircrew Boarding Pass地处半山区的靠山庄在晋(山西)察(察哈尔)冀(河北)边区的靠山村,这里是敌我双方行动的必经之地。虎虎一家世代居住在这里,以农耕为生。这儿也是虎虎、旦旦和小伙伴们玩耍的天堂.这天日军小队长正在召开会议……