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向西北可以威胁到关中。The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.即便是要见大小姐，光明正大地去求见就是了。浙江卫视大型人文综艺节目。9月13日起每周二晚10点锁定浙江卫视！颠覆性改造升级的第四季《中华好故事》又将开课授业、烧脑来袭。见了刘黑皮，自然又是一番问候寒暄。据悉，陈昊在剧中饰演一位痞味十足的江湖少年，误打误撞进入监狱，并在狱中与霍震霄（刘昊然饰）结识。在狱中各方势力恶斗的复杂环境下，二人从互不待见的冤家，走向合作，共同成长、完成蜕变。陈昊与刘昊然等诸位实力派演员首次合作，一起献上一个热血沸腾、勇敢无畏的精彩故事，同时，两位少年又与热播剧《远大前程》的人物有何关系，都将在4月30日于腾讯视频上线后一一揭晓。Thirdly, the results of the exercise are not positively related to time, which also depends on the exercise method. Eriksson cited many examples in the book, and there are also some people around us who seem to work hard but have not achieved anything. During the practice, do we adopt the strategy of phased progress, adjusting with time and effect, with pertinence and skill, or do we mechanically spend several hours a day just to achieve the goal of "10,000", but we have never found a more effective training method, and cannot identify and make up for the loopholes in the practice so as to make progress? The difference between them is ultimately the difference between "senior novice", competent person and expert.