肥猫经历了几番风雨，终于寻回了他的亲生弟妹们：年轻有为的医生二弟华世杰、大律师三妹婉容、美丽的四妹纪香、曾经误入歧途的五弟丰收。众人回到故乡拜祭母亲，团聚在一起。然而好景不长，历经坎坷的这一家人似乎始终得不到幸运女神的眷顾，不幸的事情陆续发生，先是二弟世杰的妻儿遭遇空难，双双罹难，世杰伤心过度，驾车时神思恍惚发生了车祸，重伤昏迷；接踵而至的沉重打击使本性开朗的华老太表现出了精神分裂的症状；婉容的生活表面上风平浪静，但内里也充满了由小摩擦渐渐转变而成的大风浪，这叶飘摇的家庭之舟眼看就要覆灭；小妹夫正常因为一个偶然的疏忽，将其倾注了全部心血苦心经营的婚纱店付之一炬，对于这对新婚燕尔的小夫妻而言，这场火灾不异于晴天霹雳，正常更是差点丢下妻儿老小，跳楼轻生；五弟丰收出狱后，处处受人歧视，找工作也四处碰壁，几乎丧失了重新投入生活的信心……7岁的伯蒂尔的父母在工作，伯蒂尔独自在家，感到无聊。自从他妹妹玛莎因病去世以来，他是家里唯一的孩子。但当他… 八岁那年，时局大变，民国肇建，清帝退位，陆府连带着大受影响；显赫化为乌有，皇亲国戚的身份消失，原本在朝为官的父亲陆正波赋了闲，在家研究字画古玩打发时日，陆老太太则沉湎在昔日的繁华梦中，依然定期进宫向逊帝溥仪及太妃们请安，并且以此为生活的重心；母亲陆夫人以严厉的态度管理家务，个性和行事风格都宛如老太太的翻版。Tashi has been afraid to show his heart. But more than a month after Ma Jinyu left, the young man was thinking about the female reporter from Guangzhou every day. Finally, Tashi decided to call Ma Jinyu to express himself."Because the artillery suddenly 'dumb fire', Later, it was said that it was the same as position 169, because the ammunition consumption was too large and too many shots would be supplied for a while. It was not wrong to say so, because at the peak of the attack, the number of the two strange things released by the Vietnamese army below was too large to count. Have you ever seen ants crossing the river? That's what it feels like, If they are piled together, The density is almost a "ball", So in this case, The firepower of the artillery group is especially strong, Ammunition consumption far exceeded previous expectations, After all, no one expected to meet such a thing at that time, We didn't know how to describe it when we sent back messages on walkie-talkies at the front line. Anyway, it just said that the number of enemies was very large. Hit them hard, It was also the most intensive shelling I have ever seen. In the blink of an eye, It is normal to drop 4-6 shells on an area of about one square meter or even at the same time. The entire position 142 trembled under the shelling, At last, I felt that the ground under my feet would be overturned. Now think about it. If it weren't for the artillery comrades' hard support for us, the dozen or so people and the guys in our hands at that time could not withstand the attack of so many strange things. If they were called to rush up, they would have to tear us up and chew us up.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 Baidu重庆解放前夕，敌人计划实施一项破坏重庆的“天下一号”任务。潜伏在重庆保密局的我地下党员秦天亮，在获取敌人资料时，被敌人发现。保密局命令把秦天亮的妻儿作为人质送往一座小岛，要挟秦天亮为敌人做事。潜伏下来的保密局重庆站副站长老都等人负责与秦天亮联系。秦天亮在敌人撤走前，得到情报，代号为“老 A”的一个大特务潜伏在我方内部多年。秦天亮为尽早揪出“老A”，面对进城的部队领导马友谊，没有坦露自己的真实遭遇。同时，秦天亮妻儿的秘密，被我党潜伏在小岛的电报组组长汪兰识破。秦天亮腹背受敌，既要隐藏真实身份，与潜伏特务周旋，又要在暗中寻找出“老A”。最终在同志的协助下，铲除内鬼、破获了敌人的“天下一号”计划。
