Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:
轻松幽默的家庭伦理剧《谁来伺候妈》作为《老牛家的战争》的姊妹篇，该剧由知名导演余淳先生执导，结合了时下最火的家庭婚姻生活话题，讲述林母和林家三兄弟的复杂家庭生活，关注赡养老人问题、遗产分割问题、离婚再婚等多种家庭生活中会面临的各种琐事。
The design stage of subway station comprehensive pipeline lags behind the design stage of civil engineering, wind, water and other pipeline schemes, and the design of comprehensive pipeline shall be specialized in civil engineering, wind, water and other pipelines.
《真情之家》（英语：Home Sweet Home），原剧名为《温馨之家》，是2017年三立华人电视剧八点档系列第十九部作品，接档《只为你停留》。本剧由孙沁岳、阳咏存、纪言恺、李维维、 谢祖武、苗可丽领衔主演。原女二演员周采诗因尾椎椎间盘突出辞掉演出工作，造成主视觉与片头片尾、项一柔戏份都重拍。
On August 7, when meeting with Lei Jun, Li Qiang said that Xiaomi's layout in Shanghai this time was "highly consistent with the development direction of Shanghai's industry and science and technology". He invited Xiaomi to participate in the first China International Import Expo and the first World Artificial Intelligence Conference to be held in Shanghai in November and September respectively, and hoped that the two sides would "further deepen cooperation and promote the gathering of innovative resources, breakthroughs in innovative technologies and the first launch of innovative products".
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"Do you remember what type of explosive cylinder your company commander used at that time?" I asked.
6. Click to download: Communications Department's electronic signature attachment. RAR, attachment 4, attachment 6, attachment 8, fill in and affix the official seal; Annex 10, two copies shall be filled in and stamped with the official seal.
Things are actually developing in a good direction here. Because they moved their hands, the collectors certainly could not stay here, fearing that the platform would be in trouble if they called the police, so they withdrew all their staff, and they also withdrew first because of something happened to the company.
是……小妾连忙小碎步奔了出去。
就这样，秦湖赢了状元郎两个女人，喜不自禁。
正是讨伐叛逆……两军在淮水附近展开激战，短时间内战争肯定不会有结果，但是已经牵动了很多人的心。
饥饿的青春 第五季
Method 1 (WIN10 cannot use this method):
The soldier who flushed him later blamed himself. I also advised the young man that there was no way out. No one wanted to do this, but there was really no way out. "
情节延续上一季的紧凑，这一次中Nikita（李美琪Maggie Q 饰）将继续与老谋深算的Percy的周旋，而她与组织之间的这场战斗继续在上演。不过这一次她多了三个帮手，变成爱人的Michael（夏恩·韦斯特Shane West 饰）、组织内的卧底Alex（琳德西·冯塞卡 Lyndsy Fonseca 饰）、计算机专家Brikhoff（亚伦·斯坦福Aaron Stanford 饰）。
电视台 BBC 2
这是关于一个强大并且聪明的女人Rarapee的故事。她非常爱她的丈夫，但是在她怀孕期间，丈夫去世了，她决定成为一个单亲妈妈继续生活。在成长过程中，她的孩子痛恨爸爸的不负责任离开了他们。然而，Rarapee从不恨她的丈夫，相反，她坚信丈夫有一天会回来。很多年以后，她的愿望出乎意料地实现了。他的丈夫以一个年轻英俊的年仅24岁的男孩Thing的身份重生了，跟她的儿子年纪一样。当他们相遇时，不同年龄的神奇爱情开始了。那么Thing能够发现他的前世吗？他们会在爱情路上面临困境吗？
这套动画，从与孩子生活密切相关的家庭环境、公共环境、饮食安全等多个方面入手，设计了形式多样的安全知识游戏，寓教于乐；同时，配备了相关的育儿安全建议，方便家长进行安全教育方面的亲子互动。希望本动画系列能帮助孩子们尽早掌握安全知识，树立安全意识，养成良好的安全行为规范。
