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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.清朝末叶，大旱年间。“尚吉利”作为南阳丝绸业的小作坊，尚安业的儿子尚达志年少气盛，闯荡卖绸，遭到大绸商楚陶朱的蛮横欺压。在秦家父子的仗义帮助下，方化险为夷，转危为安，因祸得福。辛亥革命爆发，兵荒马乱。尚达志救下一个即将冻死的乞丐栗温保，由此埋下祸根。南阳镇守使晋金存，正在缉拿悍匪头目栗温保，此间偶遇尚达志热恋中即将成亲的美丽姑娘盛云纬，公报私仇，抓捕了尚达志。为此，尚秦两家被骗尽家财，陷入困境。盛云纬为救尚达志，委身嫁给晋金存，婚后发现自己怀上了尚达志的骨肉，心如刀割。达志几乎疯癫，绝望之余迎娶了一直暗恋他的顺儿。他的父亲在绝望中死去，留下遗嘱，尚家家业一日不兴，死不瞑目。秦父最终以自己的死追回两家的十万两失银，“尚吉利”终于又挂起了招牌。尚达志经营的“尚吉利”绸行渐有转机，不料晋金存亲手开枪打死了盛云纬。云纬临终留下遗愿，希望她和达志的女儿贞祺能认祖归宗。顺儿用宽厚的母爱接受了这个不幸的孩子，给了她一个温暖的家。尚达志研发的“花旗”绸在美国旧金山博览会上获了奖，但好景不长，假绸四起，再考古学教授Jack（成龙 饰）多年没有踏出学校，校长和学生都对他添油加醋的历史半信半疑。一次授课后，一个印度女孩找到Jack，用一张千年地图吸引了Jack的目光。于是Jack和挚友的儿子李琼斯（李治廷 饰）、助教小光（张艺兴 饰）组成“寻宝小分队”，为“神秘宝石”展开冒险，在迪拜和土豪飙车，在冰岛潜入神秘冰穴，在印度大战土狼，和印度贵族斗舞，动作喜剧再升级，打笑全世界。Although the propaganda posters of the Second World War once said the truth that "more words must be lost", "knowledge is power" is also an indisputable motto, especially in the protection of modern business technology systems. There is no doubt that as the chief information security officer of an emerging banking organization, it is absolutely substandard to choose to avoid talking about it after the first round of attacks. Facing the security threat, what everyone needs is smooth information, new attack data and the development trend of defense system, all of which need a good communication environment.西楚国的臣民们奇怪了半天，有了一种猜测的时候也便释然了。