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Bulgaria: 275,000If 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.该剧并不是写给青少年的校园剧，而是写给我们大家的职场剧，和以往的校园剧从学校外面窥探学校和老师的方式不同，将直击校园内部的我们不熟悉的露骨真相。 徐玄振在剧中饰演私立学校临时老师高荷娜，作为没有资历的菜鸟老师，她进入的却是以教学出色闻名的大峙洞私立高中，被大家认为是空降兵和说谎精，就这样踏出了社会生活的第一步。 罗美兰饰演学校升学部部长朴成顺。她在学生面前是技高于人的“疯狗”，是典型女强人系列的“工作狂”。她是大峙洞学校的入学负责人。1. Creator: FactoryPizzaStore as defined above. It is an abstract class, which defines the method of creating objects. This method is an abstract method, and the specific process of creating objects is implemented by its subclasses. This abstract class usually relies on an abstract Product (another role in the factory method pattern) class. These abstract products are made by subclasses, and the creators do not care what kind of products are made.骗子离开大卫破产,失业& -他的女朋友。所以他开始找到骗子但是复仇并不是在他的脑海中。Hematopoietic system diseases are unqualified.这是一部母女间的感人故事，读来令人震撼不已。尤其是剧中所传达出来的“母慈女孝”的深刻主题，更是与当今“共建和谐社会”的时代背景不谋而合。