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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.秦家也不待见他，因此两点，他就把那份妄想丢开了。聚焦活跃在1970年代的美国连环杀手、强奸犯——“金州杀手”。他犯下至少50起入室强奸、13起谋杀，一直隐藏在黑暗中。2018年，前警察Joseph James DeAngelo被起诉，疑为这名杀手。剧名来自金州杀手威胁一名受害者的话：“你将永远开不了口，而我将消失在黑暗中。” 本剧改编自作家Michelle McNamara对金州杀手的同名纪实调查书。三个暴窃贼阴差阳错遇上警队，更错乱辗毙一警。为求脱身，三人走入一酒吧，却发现店内其一人质竟就是警方原要追捕的重犯。此时警方已把酒吧重重包围，决定进行强攻……Mental Representation Helps to Explain Information//093看来Sara还是耐不住寂寞，CSI的制作人们也病急乱投医，为了挽救下滑的收视率，刚刚离开该剧还不到一年的Jorja Fox正式和剧组签约，将重返CSI，在第10季中出演若干集。