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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.阿莱格拉梦想成为11点钟音乐剧公司的一员，并成为《奇异的星期五》的明星，这部剧多年前曾使她的祖母成圣。Cocó祖母是音乐喜剧界一位在世的传奇人物，她与阿莱格拉的母亲、女儿卡特琳娜有着复杂的关系。当阿莱格拉在家中发现一个神秘的手镯时，她的生活完全改变了。手镯把她带回了1994年，也就是卡特琳娜像她这么大的那一年，她在11点的时候在明星科科的阴影下迈出了第一步。在他事业的巅峰。通过了解母亲和祖母的过去，阿莱格拉不仅有助于愈合创伤，让家人团聚，而且她还将发现，尽管过去无法改变，但仍有很多东西需要从中学习。当Haskin一家在Diablos 锯齿山脉的森林中，寻找远离“电脑千年虫”危机的庇护之地时，遭遇了恐怖和疯狂的经历。他们被一群恶毒的畸形乡下人劫持，并展开了奋勇抵抗，但是谁也没想到他们将要面临的是一场从地心爆发出来的巨大梦魇。我国首部解读中国制造文化密码，弘扬航空报国精神的电视剧。该剧以严谨的现实主义创作精神书写了新中国航空工业70年悲壮伟大的奋斗历程，题材宏大、行业尖端，具有很强的标志性和引领性。先生，此事您怎么看？韩信在第一时间想到了谋士蒯彻，其才智和谋略或许能帮自己走出困境。"As long as they are hit, they are basically shot one at a time. The lethality of steel balls is much smaller than that of bullets. A dozen or twenty bullets can also kill one. They are animals after all, and they are still afraid of bullets. However, the speed is fast and it is really difficult to deal with." Liu Guangyuan said.2. Ships using traffic separation schemes shall: