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民国初年，军阀混战时期，船工子弟陈二娃在机缘巧合下，在重庆较场坝开了一家火锅馆。躲债的富家小姐李若兰、为清剿山匪而潜心卧底的魏天南和一心想讨老婆的大龄青年曾宝玉先后成为馆子的伙计。火锅馆刚开张，各种意想不到的事便接踵而来，先是遭遇同行的恶意竞争，几经周折后走上正轨，却又被山匪觊觎。在陈二娃和同行们的努力下，众人不仅协助城防大队、联合袍哥剿灭了山匪，还让深陷赌局的赌徒重获新生、令不孝的逆子迷途知返、帮助侦探捉拿通缉犯、阻止贫苦女子被卖入青楼、带领水八块小贩们抱团生存。在火锅生意逐渐红火的过程中，陈二娃获得了事业与爱情的双丰收，也让渝商艰苦奋斗的精神得以发扬和传承。The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From BaiduRecommendation of Hot Joining Projects: Hu's Large Plate Chicken Joins Big Official Rice Noodles Joins Meimao Maocai Joins Gao Jimi Joins Jin Fuxiang Joins“M 'entends-tu ?这部戏剧喜剧将我们带进了Ada、Fabiola和Carolanne这三位生活在贫困中的老朋友不寻常的日常生活中。朝阳升起的时候，荥阳汉王府前已经聚集了很多的官员。同样室急症室医生的裕 （马浚伟 饰）则周旋于护士长霞（陈芷菁 饰）与见习医生冬（曹众 饰）之间，无法选择，烦恼不已。王世懋在旁哀叹：生无所求，朝无所已，我也随兄辞官回家吧。