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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.刘土地有两儿一女，老伴去世后，他含辛茹苦把儿女们拉扯长大，眼看着小儿子刘大海就要娶媳妇了，却因同村姑娘梁三朵“怀了孕”而终止了婚约。在刘土地的主持下，三朵嫁给了大海。婚后三朵才得知自己并非怀孕，而是得了一种恶性病。为了给三朵治病，刘家倾其所有，背负外债为三朵凑齐手术费。三朵出院后，怀着对刘家的感激之情和救命之恩努力生活，要用自己的双手还清外债。她在村里开了一间小酒坊，创业过程中历经磨难、困难重重，面对妯娌的从中作梗和对她有成见的小姑子的蓄意捣乱，原本生活艰辛的三朵又增添了磨难、坎坷和挑战。最终，坚韧不屈的三朵还是把这一切都一一化解了，用自己的善良和一颗感恩的心感动着身边的所有人。1990 BAFTA电影奖 最佳电[1]　　G型神探一直以来为Metro市里最出色的警探之一，直到邪恶的克劳博士(鲁伯特-艾弗莱特饰)出现为止。克劳博士设计陷害G型神探，让他被误以为是盗取Metro市立银行数百万元的嫌疑犯，害得他不但被摘下警徽同时还名誉扫地。G型神探一定得将邪恶的克劳博士绳之以法，洗刷自己的冤情，恢复神探的美名。林汉杰（姜潮 饰）、程铭（小五金恩圣 饰）、郝大雨（闫安 饰）被称为东山大学"三剑客"，三人性格迥异，经常闹出一些让人大跌眼镜的“幺蛾子”，而其中总少不了“女汉子”柯芸（张嘉倪 饰）和“乖乖女”苏婷婷（马春瑞 饰）。柯芸和苏婷婷是无话不谈的闺蜜，两人性格亦相差甚远，柯芸是一个十足的女汉子，而苏婷婷则给人温婉之感。The next step is to collect an MD. In fact, when I was a child, I played more MD. After all, the popularity rate of MD is higher.