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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:《黑白人生》讲述了某县县长面对私企老板的拉拢毫不动心,以致妻儿惨遭杀身之祸,最终战胜邪恶的故事.山阳县县长郑楠的妻子和女儿被蒙面人杀死在自己的家中,这一刑事案件震惊了整个白山市,案件侦破两个月没有丝毫进展,白山市委决定重新调用侦破力量,在新上任的山阳县公安局局长李斌良率领下,公安队伍与邪恶势力展开了一次次的较量.于是,一个个官商勾结,黑白混淆的腐败案件开始浮出水面,最终主人公郑楠和杀害妻女的元凶同归于尽.九岁的杰森在一次民俗节日上被母亲遗弃后，就在一个沉默不语独居者的森林小屋中避难。 最终，看似毫不相干的二人组成了某种意义上的家庭。MI6秘密特工（马克·斯特朗饰）为了完成一项任务，不得不同与自己在年少分离的足球流氓哥哥（萨莎·拜伦·科恩饰）携手。当蠢贱无双的哥哥遇到精英特工弟弟，活活将一次箭在弦上的隐秘行动，搅和成一场鸡飞狗跳的绝命逃亡。人类的安危系于由两个画风完全不同的家伙临时凑成的组合上，一个王牌大“贱”谍如何拯救世界的搞笑故事就此展开。云影很是赞了一会。The report posts have been deleted... You are in the same group.　　1935年11月，中央红军长征，韩先楚率部参加了著名的直罗镇战役。