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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.从某种程度上讲他有很强的控制欲，当盟友不在信任他时，他会使用自己的小手段去控制住他们。该剧讲述了一位干练律师在被告知患上了早发型阿尔茨海默症后，赌上自己的人生奋勇迎战，直到最后一刻都想要维护自己的尊严的故事。花无缺不但被骗了，还对骗他的苏樱感恩戴德。方仲永五岁便能作诗，可是之后，方仲永并没有潜心学习，而是一味的卖弄才华，最后落得一个泯然众人的结局。回想起来，因为最肤浅的理由而成为警察的川合麻依非常后悔。抗战打响，日军封锁我国运输路线，危急时刻神鼓滇缅公路撑起了抗战的后勤补给，这条神奇的公路自建成时就书写了一幕幕传奇。由于急缺司机和技工，来自南洋的三千余名华侨毅然归国，不顾前途艰险，共赴国难。方家兄弟是这些华侨中的典型。大哥方万海表面上是一个投靠日军的汉奸，实际上却是中共潜伏在日军内部的地下工作者；方万海委曲求全，忍受着所有亲人和朋友的误解，为了自己的信念，在生死之间游走。弟弟方千树本是纨绔子弟，对祖国的观念很是单薄；然而在战火中，方千树看着一个个好友在日军的轰炸下惨死、在疾病的痛苦中离世，这让方千树心中感到了无比的震撼，让他明白：为了民族和国家的希望，他要重新找寻前进的方向和生命的意义