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Behavioral pattern is an abstraction of dividing responsibilities and algorithms among different objects. Behavior patterns are not only about classes and objects, but also about their interactions. Behavioral patterns can be divided into two types: class behavior patterns and object behavior patterns.对此彭越并不担心，毕竟吕雉已经将盖有汉王玺印的诏书给自己了，刘邦也不可能因此此事而失信天下。The code in the fourth step has some changes, putting the logical behavior corresponding to the state in the Upload class:洪霖是懒得跟这混世魔王理论。女演员凯伦（凯瑟琳·麦菲 Katharine McPhee 饰）拥有一副所有女人都羡慕的羡慕外表，却在事业上屡屡遭遇挫折，和她同样境遇的还有艾薇（梅根·希尔提 Megan Hilty 饰），两人都将能够扮演玛丽莲·梦露当成了事业和人生的突破口。随着时间的推移，制作团队逐渐扩大，台上和台下，好戏共同上演着。本片根据芥川奖获奖作家绵矢莉莎的原作改编。Composite Reuse Principle (CRP) is to use some existing objects in a new object to make it part of the new object. New objects reuse used functions by delegating to these objects. In short, it is necessary to use synthesis/aggregation as much as possible and not inheritance as much as possible.