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Http://baike.baidu.com/view/1306799.htmExplain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.The shops that have been bought in the building can also attach quality comments.1938年，皖南白龙湖畔徽州县城。城外枪炮隆隆，满城人心惶惶。日本兵即将进城。该剧讲述了“黄梅戏头牌青衣”季素如何从纯真的女孩成长为一个坚强的母亲的故事。《勇往直前的我们》是2022年一季度湖南卫视重磅企划大型消防教育节目，聚焦平凡英雄、走入人间烟火，打开消防员们的世界去看不一样的热血青春。《大决战！超奥特8兄弟》是由日本圆谷株式会社制作的剧场版，是《奥特曼》剧场版系列中的一部电影，由八木毅执导，长野博、五十岚隼士、鹤野刚士等领衔主演。于2008年9月13日在日本上映。突然和猫居尔加一起生活的胡塔。