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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.青霞（周慧敏 饰）父亲马六甲（郑则士 饰）是香港黑社会老大，青霞却爱上了一个反黑组的警员阿汉（黎明 饰）。父亲知道宝贝女儿的未婚夫从事的职业后，极力要拆散这对鸳鸯。耍尽了手段丑化阿汉在青霞心中的形象。马六甲故意安排女生与阿汉缠绵，青霞看见后激动不已并与阿汉分手。马六甲怕女儿知道了真相，假扮对事情一概不知。后来贩毒集团怀疑马六甲提供了其犯罪资料给阿汉，绑架了青霞。其间，周父为了分开两人而笑料十足，在影片最后，各自在不同的理由下与黑帮展开了激烈的争斗。Glory Royal Bonus, Map Bonus Soldiers, Arms Enhancement BonusPublic void setState (State state) {…,当然尹旭也有种揭开神秘面纱一角的感觉，他深切地感受到，这个时代还有许多自己并不知晓的秘密。Some timing operations on data no longer rely on external programs, but directly use the functions provided by the database itself.