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In the system, the client often needs to interact with multiple subsystems, which causes the client to change with the change of subsystems. At this time, the appearance mode can be used to decouple the client from each subsystem. Appearance mode refers to providing a consistent facade for a group of interfaces in the subsystem. It provides a high-level interface that makes the subsystem easier to use. For example, the customer specialist of Telecom can let the customer specialist complete the services such as charging telephone charges and modifying packages without interacting with various subsystems by himself. The specific class structure diagram is as follows:配不配我都是，你永远改变不了。等死呢？？杨长帆一把拽住胡大惊问：怎么回事？胡大挣脱不开，死瞪着杨长帆吼道：听不懂人话么。清朝末年，四川“十里香”酒坊酿造的杂粮酒闻名天下。老掌柜陈敬轩在选择接班人时，把担子交给了义子伍永和。辛亥革命后，伍永和被推举为戎州酒业商会会长，为了保护中国白酒的发展，他带领戎州酒商，以诚信击败不法商人制造的假酒案。并与日本酒商宫泽斗智斗勇，保护了中国白酒的民族品牌。之后，他适时引进西方的经营方略，成立了“三江缘”股份公司。抗战爆发，民族危亡，已发展为大企业家的伍永和，以国家民族利益为重，积极支援抗战，直到抗战胜利，“三江缘”浴火重生。Thank you, Big Brother, for your test.大婶一边下馄饨一边对他们笑道：能吃是福气。Late September