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If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.西班牙爱情影片，讲述了一个类似于罗密欧与茱丽叶的现代爱情故事，来自中上阶层的乖乖女遇到了驾驶着摩托车，以打架闹事为业的坏男孩，没有共同点的两人不可阻止地相互吸引。就这样，等门房来的时候，林聪已经无法去见周菡了。如今两家都议婚论嫁娶了，小葱选婿的结果也肯定已经报给太后知晓，断没有悔婚的道理。冷家八个兄弟以情感经历为主线，描写中国当代农民进城打工的故事。冷家八兄弟闯入京城，既兴奋又畏惧，既向往又茫然。靠勤劳，靠忠厚赢得社会承认，得到了世人的尊重。向人们展示了改革三十年来，中国农村向工业化、城市化转移的变迁，及公正、平等对待农民工的故事。. interpret (new Context (9, 2)), 8));4. After opening the two places at once, you can see a new WeChat icon on the desktop, and click Enter to log in.