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User Actions and Input Values永平帝听后微微点头。西环海边附近有人发现了一具无头被肢解的女尸，面蒙心精而屡破棘手奇案的凶杀组督察欧振球，也对这个全无线索可寻的无头浮尸案感到束手无策。刚巧在一次小解时，无意中找到了一点破案的线索，追查下去，发现竟是一桩叔嫂惨剧。Groups objects into a tree structure to represent a "part-to-whole" hierarchy. Composite allows users to use both individual and composite objects consistently.Application scenario: Mediator mode is generally applied to situations where a group of objects communicate in a well-defined but complex way, and situations where you want to customize a behavior distributed in multiple classes but do not want to generate too many subclasses.There are seven structural modes (6-12): adapter mode, decorator mode, agent mode, appearance mode, bridging mode, combination mode and element sharing mode.　　《战争与和平》是俄国作家列夫·托尔斯泰（Leo Tolstoy）的大部头名著，小说通过对安德烈、彼埃尔、娜塔莎三人在1812年俄国卫国战争前后的经历，展示了当时俄国社会的风貌、反映了1805年至1820年间的许多重大历史事件。