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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.11. Stocks are very expensive and have gone up a lot, which is not the reason why you refuse to buy or sell. He may rise even higher.本影片基于真实故事改编。在1986年挑战者号升空爆炸的前夕，一名工程师竭尽全力阻止飞船的发射。这位一腔热血的工程师争分多秒地争取中止这艘价值十亿美元的挑战者号飞船的发射，坚持认为O型密封环会故障失效并导致飞船全员覆灭。马歇尔太空飞行公司做出了商业层面的决策，而这位工程师做出了人性的抉择。　　火车上经常有同车人张强（孙红雷 饰）。张强暗暗为周渔美丽的气质所打动，二人由起初的争拗渐变理解。张强总是在周渔失落烦恼之时为她解忧，帮她找寻陈清诗中所写的湖，感情在暗涌，周渔也在两地、两个男人之间矛盾的徘徊。在张强身上，她感受到强烈的男子气魄和欲望，然而却也离不开孱弱的陈清。吸血鬼确实存在，就在此，在我们之中。 今时今日在巴黎，玛莎·拉德斯库（苏珊·克莱门特 饰）的家人住在地下。 但是，当16岁的多娜转变成一种新型的吸血鬼时，他们脆弱的平衡便开始破裂。 半人半吸血鬼，多娜学着应对她的双重本性。 日间，她对于朋友们是个危险的存在。 夜间，她独特的魅力又被吸血鬼群体垂涎。故事是漫畫中的特別篇〃信蜂和搭档〃在二院里看见板栗、葫芦和刘井儿围在一处说话，敬文娘笑道：回头我叫敬文来瞧瞧你们。