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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.Jersey Version: Player VersionThe research on classification ability is more in kindergartens and more in primary schools. Research by cognitive psychologists has found that children under 0-1 years old basically have no classification ability, and they mainly rely on individual perception. The classification ability of children aged 1-3 has begun to sprout, but the concept of "category" has not yet formed. The classification of children aged 3-5 is basically still based on external perceptible dimensions such as shape and color. For example, children in small classes in kindergartens are asked to classify red plastic balls, red apples and bananas. They will divide the balls and apples together, either according to the shape (circle) or according to the color (red), but they will not put apple kernel bananas together according to the function (edible). What if you add another celery?盖林多能逃脱吗？迈克会让弗里克如愿以偿吗？战无不胜的影子勇士再次肩负起艰巨的使命。After hearing these words, I briefly summarized and recorded the characteristics of two different "living biological weapons" on position 169 and position 142 in the interview notebook and compared them:2015年泰剧《妒战主播台》又名《心浮星沉》、《争夺女主播》，本剧主要讲述在新闻职场里的尔虞我诈，权利争夺战。[2]　　生命诚可贵，握手价更高，女神的见面不能等！袁非的世界中心就是三件事，追星，追星和追星！但用力过头的下场，就是学分不够用。袁非只好蒙骗他的冤家发小，郁佳，成立柔道社，让自己捏造比赛来获得世(bì)界(yè)冠(xué)军(fēn)的伟大梦想，得以成真。