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:
For example, in the above column, Xiao Hong suddenly didn't want to buy shoes, so he didn't want to accept the news of the seller's store, so Xiao Hong could cancel the subscription of the store.
? The website is changing, the audience is changing, and the creators are also changing. Today's audience is not in the age when information was relatively isolated as we did at the beginning. They are in an information age. The relationship between people on the Internet is getting closer and closer. As a result, they are more and more eager to communicate with others, express themselves, desire others to identify with themselves, and people are less and less willing to be isolated. I can put forward a phenomenon that when a person plays with obstacles, the people around him are also willing to be a repeater, for fear that they will not be able to keep up with the topic and will be despised and isolated. On the barrage, we will find that there are really many repeater machines ~ ~ ha ha. And some of the barrages, to be honest, have already seen bad, but they are still happy to knock on the keyboard and press enter. Finally, I also began to click to close the barrages.
再说，养这么大，到底是块什么料。
美墨边境题材剧集《#郊狼# Coyote》发布预告，宣布移至CBS All Access，2021年1月7日上线。而CBSAA明年初又会改名为Paramount+。 这部6集剧之前Paramount Network开发。由David Graziano、Michael Carnes及Josh Gilbert执笔的剧集《郊狼》聚焦在美墨边境，讲述当了32年美国边防警卫队探员的Ben Clemens（Michael Chiklis饰）过去一直为美国抓捕墨西哥偷渡者。现在他被迫为对面的人效劳，但当主角正式待在边境的另一边后，他发现自己非黑即白的观点，以及原本的忠诚都被慢慢动摇起来。
当那元军将领终于心惊，要转身逃跑的时候，已经晚了——连同身边护卫的人一起，被赵锋拦腰斩成两截，也省了他们挨个地替他阻挡。
A4.1. 3.2 Near vision.
改编自日野草的同名系列小说，主角义波生来欠缺情感，进而接受委托替代他人复仇。委托人从高中生、被骗婚的女性至连续杀人事件的受害家属都有，义波将依委托人要求，选择另目标身心最残酷的手段报复。与其同伙的另有数人，并由一位代号TAKER的少女支配，开启了复仇事业。
先前街坊四邻，何府家丁等人皆来探望过，他依徐文长所说，卧病在床，虚弱万分，装出一个月内不能出门的样子，好为之后的行动打下幌子。
醋意与爱意齐飞，阴谋共阳谋一色。
Open the "Learning Power" client. On the welcome page, it is "It's a pleasure to learn while learning" from the Analects of Confucius. To use this client, you need to register your mobile phone number. After registration, it enters the main page. From the content point of view, it consists of 38 channels in the two major sections of "Learning" and "Video Learning". Among them, the "learning" section includes channels such as recommendation, news, new ideas, current politics synthesis, publication, practice, subscription, economy, figures, science and technology, culture, pictures, party history, personnel, law and discipline, international, 19 major time, documentary, allusions, current reviews, thinking, military, etc.
影片改编自詹姆斯·达什纳撰写的同名反乌托邦科幻小说三部曲的第二部。
单看纸上苍劲有力，龙蛇飞舞的字，很难想到作者只是一个二十岁的青年人。
随从们不住安慰他，一人道：小的要去追上那狗，宰了它来给少爷下酒才好。
小说连载到这里结束。
号称“天下第一局”的象棋比赛在大梁皇帝和契丹国间展开，不同于普通的象棋，这里的所有棋子都是活生生的人。一场比赛下来，大梁惨败。忠将叶全忠被奸臣冷子京陷害至死，其家人包括他女儿叶冷心（何美钿 饰）被发配从军；而主将岳怀仙（黄文豪 饰）则死里逃生，被民间棋王薛一骠（张卫健 饰）所救。
本剧讲述了女主人公禹欣欣在VR游戏《公子何时休》中，坚贞不屈勇敢与邪恶势力斗争，从而喜获真爱的感人故事
《青春集结号》讲述的是95后军校孩子们的成长生活，“准军人”们在训练、考核、日常生活中相互较劲，训练中的意外丛生、男生女生间的误会不断，让平静的军校因为各路人马的存在波澜不断。成长需要磨难，当新生逐渐适应军校生活，磨合过后又有新的问题不断产生。新兴思想与军校的规定格格不入，是默默忍受还是奋起反抗？爱情的出现，是命运的转折还是墨守成规下的牺牲品？《青春集结号》将展现当代军校生的青春物语，带领观众们感受这一群少男少女成长和蜕变的过程
阿瓦隆还没有准备好处理失去母亲的事情，但当她负责照顾一个4岁的孩子一个晚上时，她发现了比她想象的更多的安慰。
