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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.他日凯旋归来，秦旷定会设酒宴相庆。　　时间到了2007年，日本少女美希子（户田惠梨香 饰）一心想让父亲脱离颓废逃避的人生而努力习茶，而父亲八木圭则因数年前自己沉迷制茶忽略妻女而把妻子意外死亡归咎于诅咒身上，极力阻止女儿习茶。美希子在网上认识台湾一个茶男，对方拥有公黑金族茶，寄给美希子机票让她前来台湾让二茶合一破除诅咒。This throne is naturally related to Gu Xixi.这部电影发生在图卢兹，讲述了55岁的警察琼发现自己的儿子马克西姆和儿子的男友在酒店房间被吊死的故事。尸检显示他死于服用过量的GHB，就在他男朋友死后7分钟。在马克西姆的朋友们组织的一个晚上，琼发现了他儿子经常去的比索俱乐部。在那里，他遇到了法比恩。为了更多地了解所发生的事情，琼多次来到俱乐部，很快受到了比苏尔人的欢迎。法比安对他产生了依恋，琼开始将他的悲痛与探索儿子世界的渴望混合在一起。经过这些天的摩擦、骂战，其实双方都对另外一本小说产生了一些好奇。张家，已经不是从前简单的人家了。