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
Sports system diseases, injuries and their sequelae are unqualified.
洪霖冷笑道：张夫人好大的决心啊。
在四猫声泪俱下的诉说中，在有心人的传播下，加上大苞谷刑部告状之举，不到两个时辰，全京城都知道张家亲儿子找上门来了，指控现在的儿子是假的。
位于洛杉矶市中心的赛西尔酒店素以全洛杉矶最致命的酒店闻名：既是连续杀人犯藏身之所，也有许多人在此离奇死去。大学生蓝可儿诡异失踪，更为这间酒店的暗黑历史添增最新篇章。2 月 10 日邀您入住赛西尔酒店，Netflix 独家。
Ning Yisi Jin: After moving, the "skill damage" increases by + moving distance * 5%. I don't know much about the algorithm. The actual combat effect refers to the old version of Feng Guanxi. This perception has been weakened in the current version, but it is still effective.
If citizens, legal persons and other organizations report or complain about the practice of fire-fighting technical service institutions and their employees, the fire-fighting institutions of the public security organs shall promptly check and deal with them.
《史酷比狗》是史酷比狗的第一部大银幕动画冒险长片，讲述了史酷比不为人知的起源故事，以及神秘公司史上最精彩的惊世秘案。《史酷比狗》演绎了史酷比与其一生挚友夏奇的初次相遇，以及他们如何与少年侦探弗雷德、维尔玛和达芙妮一起组建了世界著名的神秘公司。如今，神秘公司已经解决了数百起谜案、进行了无数次冒险，但史酷比和他的同伴们发现，他们正面临有史以来最惊险、最具挑战性的神秘案件：一个将“幽灵狗”塞伯勒斯释放回世上的阴谋。当他们拼命努力想要阻止这一全球性大灾难之时，他们也发现了史酷比的秘密身世，以及他超乎想象的神秘命运
Indoor fire hydrant pipe network form (ring-shaped and branch-shaped) and pipe diameter, number of fire hydrants, location and number of water pump adapters, and whether there is a roof fire water tank connected with this system.
北宋真宗年间，太平盛世下暗潮涌动，野心勃勃的襄王赵庆（于震 饰）设下胆大包天的计谋，企图以狸猫换取皇帝的血脉。金枪值甲班军头包铁山（张子健 饰）率众拼死保卫太子和李娘娘，力挽大厦于将倾。包括包铁山在内，无数人死于连番的内乱之中，只为保护太子还朝，粉碎襄王的阴谋。转眼又过三十年，大宋江山落入太后之手，西夏时时觊觎中原，襄王之子更图谋复仇，内忧外患，风云突变。值此机缘，包铁山之子包拯（张子健 饰）开始崭露头角。他为官清廉，刚正不阿，令权贵豪强胆颤，使元元黎首心欢，此外更有展昭（淳于珊珊 饰）等江湖豪杰相助。
翘儿取笑道，谁像你个呆子，一把年纪，连个媳妇也没有
State mode refers to allowing an object to change its behavior when its internal state changes. The object seems to have modified its class. Divide this sentence into two parts by commas. The first part means to encapsulate the state into a separate class and delegate the request to the current state object. When the internal state of the object changes, different behavior changes will be brought about. The second part is from the customer's point of view, the object used has completely different behaviors in different states. The object seems to be instantiated from different classes, but in fact this is the effect of using delegates.
格蕾成功生娃，韦伯触电待救，胖C发现AC出轨情感危机，杨和欧文感情不甚乐观，四月继续纠结小黑。第二代实习医生遇到重大考验，生离死别，真情初现……
弗朗机则不然，地处西洋，临海弹丸之地，航海、海战传统已有千百年，经验丰富，人皆会操船发炮，此役若非我们有海马船出其不意，怕是难以取胜。
讲述因无法停止的欲望造成悲剧、无辜失去家人的一个女人，在交错的命运和爱情中展开复仇的激情罗曼史电视剧。
Compared with online institutions, first of all, customers have stronger trust in physical institutions; Secondly, offline organizations have a strong scene, making it relatively easier to manage teachers and supervise students' learning. In addition, the teacher-student interaction and student-student interaction in offline institutions are more direct and social. However, due to its strong regionality, its customers are more direct and accurate.
在疫情前的洛杉矶，四名女性——厨师、单亲妈妈、女继承人和求职者——一边探索爱情与事业，一边应对中年危机
随着他成功的为期两个月的大学喜剧之旅即将结束，皮特带着一个新的面貌和自信来匹配，带着一个大学年龄的有抱负的喜剧演员Jaboukie在他的翼下。 但皮特回到纽约时发现他在喜剧酒窖里有一次尴尬的重逢和大试，可能会改变一切。
