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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.文森特和路易斯曾经非常相爱，但几个月前他们分手了。一个偶然的机会，文森特获得一个盒子，得以让他重温与路易斯的时光。他会获得第二次机会吗？哪里，都是赵大人运筹帷幄。1949年，国民党在大陆的政权轰然倒塌，其残部纷纷撤入台湾。为取得全国的解放，共产党第三野战军继续向南挺进。王本利（尤勇 饰）所在的独立师红六团是这次作战的主力，然而由于海上作战经验和一支正规海军的缺乏，红六团九千多名官兵全部葬身海底。侥幸活下来的王本利为不忘这段惨痛的历史，以好友的名字更名为王山魁。抗美援朝胜利后，王山魁被新组建的海军政委卢信泉（杜志国 饰）调至麾下，正式从一名陆军军官转变为海军副司令。在此期间，他与美丽的女军医许锦云（郑卫莉 饰）结为夫妇，还卧薪尝胆钻研对抗国军千吨级战舰的刺刀战，并成功地以几艘驱逐舰和鱼雷舰击沉敌人的千吨级战舰“荆门号”和“樟江号”，为当年红六团的战友一血前耻。在接下来的几十年里，这位铁骨铮铮的汉子随新中国经历了无数的荣誉和磨难……Sixteenth fire technical service institutions qualification by the provincial public security organs fire institutions for examination and approval; Among them, the fire department of the Ministry of Public Security shall review in writing the first-class qualification of the fire safety assessment institution to be approved.