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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.《爱的代驾 》讲述了代驾小哥工作中遭遇的风流奇事。(3) If a ship windy on the port side sees a ship on the windward side and cannot determine whether the ship is windy on the port side or on the starboard side, give way to the ship.他一直以为，赵敏无力回天，再无其他办法可想，但是谁能想到赵敏釜底抽薪，直接抢婚。红椒大喜，丢开紫茄抱住秦淼，两眼瞪得滴溜圆，紧张地问道：真的，淼淼姐你没骗我？秦淼道：我能骗你？你就不信我，也该信我娘吧？提起云影，红椒立即就放心了。鹿州市迪蒙服饰有限公司总经理许静宜在公司服装间被谋杀，而尸体却不翼而飞，引起轩然大波。负责调查许静宜之死案子的刑警，是许静宜二十年前的学生赵毅。赵毅在许静宜住处勘察时，从相册里看到了当年他在师范学校读书时的一些照片，在这些照片大多是师生的合影，其中有一张是全班的合影。而引起他注意的是，在这本老相册里，有许多空着的，很明显一些照片是被人去掉了……The so-called logical triangle is the product of concretizing the pyramid structure. The bottom of the length of the triangle represents the comprehensiveness of the factual basis, and the height represents the strength of the Sowhat (or Why) connection. In other words, the key is to use enough and balanced fact mats to construct the logic that tightly connects Sowhat and Why.