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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.Event Pearl:　　克里斯不但面对着失忆的苦恼，如今还要应付这个棘手的计划，把人生的掌握权夺回自己手中。无论领兵还是治国，人才都要经过长年的培养，投入巨大的资源，总要吃够败仗才会打胜仗，犯过错误才知道什么是对的，吃败仗、犯错误的机会本身就很稀少，在成长的过程中，人才们要经历严党的诱惑，徐党的斗，心学的洗礼，敌人的炮火，皇帝的眼光，同辈的嫉恨，以及道士的扶乩，要站队要喝酒，要贿赂要马屁，要养得起兵要拼得起命……难以想象，要怎样的运气和智慧，才能在这样的环境中坚强地成长起来遭遇租房诈骗的职场新人艾晴，意外合租有过一面之缘的同校学弟颜川。两人在温馨的同居生活中逐渐互生好感，而此时艾晴初恋的回国，打乱了这一切一个生命只剩下一百天的女孩，她会用这一百天来做些什么呢？飞扬在英国大学毕业的那天，上天跟她开了个大玩笑，医院证实她得了一种家族遗传病，生命只剩下一百天。飞扬这才知道，原来父亲也是因为该病去世。她无法理解为何母亲一直隐瞒事实，同时也无法面对一直对她严格冷漠的母亲。如果这是个不治之症，如果生命真的只剩下那么短暂的时间，飞扬宁可选择开心渡过，也不想在医院接受化疗，于是，飞扬只身逃到上海……Cai Xiu recalled that the uprising was still kissing Yu Ying. He called Yi Shang and reprimanded him for not taking things seriously. Health told his younger brothers who came to the hospital to see him that returning home at this time might convince his father. Patrol officers were patrolling in various hutongs. Fan Ren, who came out of the supermarket, ran away as soon as he saw the patrol officers. At this moment, the patrol officers met the young beauty who bought the packed lunch. Koko blamed Youmei for not bringing food to her mother-in-law. Cai Xiu told Ying after getting drunk that she could not be forgotten.