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郑兄弟不怪我冒失吧？葫芦急忙道：这有什么？我跟板栗也认识好些书院的书生。牵着不走打着倒退的脾气。《夏日心跳》别出新意聚焦“跳水”题材，通过描写一群青春飞扬的大学生在组建跳水队，参加跳水比赛的过程中经受挫折和考验，却愈挫愈勇，勇往直前的精神面貌。一方面展现了当代大学生青春热血，丰富多彩的校园文化，积极上进，青春正能量；另一方面因为跳水项目也是我国运动竞技的王牌，将此项目融入影视剧中，在展示跳水运动各种高难度动作的基础上，也可以激励时下年轻人面对困境力争上游，设定目标勇往直前的运动精神。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.Next, we will listen to the onchange event in the drop-down box of colorSelect and the oninput event in the numberInput input box respectively, and then make corresponding processing in these two events.徐文长摸不着头脑。