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香荽道。刘黑皮听后急忙转身去了。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.《妈妈的罗曼史》是由华谊实力派女演员李琳主演的情感大戏。该剧所讲述的是在特殊情况下产生情愫的一段姻缘，却因为种种阴错阳差的故事惹出了一连串剪不断理还乱的恩怨是非。据悉，业内有着收视女王称号的实力派演员李琳在影视剧《妈妈的罗曼史》中再次独挑大梁，把一位爱人、母亲、儿媳三个角色从不同视角展现出不同的丰富情感表演得淋漓尽致。多年来李琳在诠释不同角色上都能让观众看到她新的突破和扎实精湛的演技，使每一部作品在情节上跌宕起伏、感人至深。After hearing these words, I briefly summarized and recorded the characteristics of two different "living biological weapons" on position 169 and position 142 in the interview notebook and compared them:20,000 Yuan Zhai Xingli's "Close-up" of 17 Deaths, Three Minutes of Life and Death in Guilin Dragon Boat Capsizing "Editor: Liu Haichuan