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故事讲述了一个热爱科学的物理老师李西涯(至尊玉 饰)，在参加侠考时碰上了秦欢(白客 饰)秦双(郭玮洁 饰)兄妹，三人由此踏上了一段令人啼笑皆非的侠客之旅。最终，李西涯凭借自己的科学知识化解了重重危机，开启了武侠世界的新纪元。那样的长屋是不折不扣的好人？由于加助（沟端淳平）混进了的事引起的骚动的许多！救人是生存的意义的加助，在街上发现有困难的人，向好人长屋的居民们请求帮助。缝的父亲，长屋的队长？仪右卫门（吉田钢太郎）虽然很困惑，但不知为什嚒缝纫是积极地帮助别人，最终乘上了加助。缝纫的母亲？以仪右卫门为首的长屋小恶徒们，虽然很涩，但也有幕后工作的。。。几位重臣异口同声，让尹旭心中一暖，更是信心倍增。Fourth: We must pay attention to the cost of icebergs when spending money.阳庄遭回刀门血洗，庄主叶子文遇害，女儿相雨长大后，誓要为父亲报仇，迫得回刀门门主重披战衣，大开杀戒风云变幻，一个平静夜空，几条身影飞掠向双阳庄屋檐瓦顶，就在山庄满庭笑语，觥酬交错庆元念祖弥月之喜中，几柄回旋刀银光闪烁，光芒盘旋闪掠过处，血腥四溅，尸横遍地。双阳庄庄主叶子文及其义弟元人敬拚死护庄，迎战敌人，但来者不善，还没看清楚敌人来路，山庄上下一百多口人已经是死伤不计其数，对方好像誓必对山庄赶尽杀绝，杀个寸草不留！Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.[2]