In the historical substitution principle, the methods of the subclass to the parent class should not be overridden or overloaded as far as possible. Because the parent class represents a well-defined structure, subclasses should not destroy it casually by interacting with the outside world through this standardized interface.
Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.
《绝望的主妇》第五季是跳跃到了五年后。五年后的紫藤街将又是一番如何景象？
超级学霸沈心唯，是北美学术界备受瞩目的学术新星。他为人正直，坚持正义，却受人诬陷，一气之下回国另谋发展。不料刚一回国却摊上了更大的麻烦，生活都成了问题。白领那娜，刚与路凯在国外领证，却得知路家即将在国内与许家联姻。然而此时，那娜发现自己已经怀孕。机缘巧合下，沈心唯与那娜结识，那娜下定决心做个坚强的单亲妈妈，而沈心唯主动成为了她的月嫂先生。二人从针锋相对到逐渐了解，最终收获了爱情的沈心唯，也放下一直以来的“学术执拗”，从那娜和孩子身上找到了事业的新方向。
好容易粉红冲进前十五，可不能掉了，最好冲进前十（今晚做美梦）。
Deadline指RickyGervais与Netflix签下一份多年合约,这除了让《#后半生#AfterLife》续订第三季外,他还会为Netflix开发新剧集及进行单口秀表演。
However, many enterprises have already found the clue when they are attacked for the first time, and security managers also need to give an answer as to whether malicious attacks will come back. Therefore, although CSO people do not want to talk much, we still hope to know their handling attitude. In order to avoid unexpected troubles, we reported the experiences of several CSO's in the work in an anonymous form, and discussed why the security strategy that had always worked failed in the end.
穿越到了明朝末年（大明崇祯年间，1644年）。当他掉落在大街上时，正好遇上了外出的明月郡主。一番冲撞之下，李斯坦被武功高强的郡主带回了王府。郡主对李斯坦的奇装异服所吸引，李斯坦也在与郡主的斗嘴中逐渐喜欢上了郡主。
你不知道？一个多小时前，司马二又发出新言论。
On October 18, the General Office of the State Administration of Press, Publication, Radio, Film and Television issued a report on the investigation and punishment of false reports published by the media, which reported on the investigation and punishment of false reports published by Nanhu Evening News:
风景如画的安纳托利亚中部山区，对现实不满的三姐妹因各自的原因从城市归来，被迫与他们专横强势的父亲生活在一起，彼此心中却极度渴望远离此地。这部电影在白昼与黑夜交替中呈现宁静又神秘的山村景观，在交织的寓言传闻与家庭戏剧中，凸显女性生命力量与抗争精神。
由奈央晃德作画、齐藤健二担任原作的漫画《TRINITY SEVEN 魔道书 7 使者》，预定推出的第二部电影改编动画正式定名为《七人魔法使剧场版：天空图书馆与真红魔王（劇場版 トリニティセブン -天空図書館と真紅の魔王-）》，官方近日公开了正式宣传预告。
The clinical data to be prepared before MDT meeting should at least include: necessary diagnostic information (such as pathology and imaging, etc.), clinical information (including complications, psychological state and palliative treatment, etc.), patient's past history and patient or family members' views on diagnosis and treatment, etc.
郡主用竹签一戳，他就倒了。
When starting up, after the system self-check is completed, press F8 continuously until the "Start Menu" appears. Use the cursor to select, select the first item, and press Enter to enter.
马特·多诺万已经离开了危险的黑暗世界，因为神秘瀑布镇的世界已经开始回归正常。可怜的邦妮已被剥夺了她神奇的能力。藏在黑暗中的邪恶生物引诱达蒙和恩佐落入陷阱，占有了他们，并把他们变成冷酷无情的杀人机器。斯特凡、卡洛琳和历史哥，这个三角关系会组成团队，帮助邦妮在第八季中寻找对于她生命中的两个最重要的男人，但是他们每次得到的消息都可能是达蒙和恩佐很早之前的消息.
永平帝还能怎样，只好认错。
(1) These lights shall have the following meanings:
天马贤三被称为天才医生，在西德留学研习医术。因为他卓越的医术而被爱斯勒医院院长和同事赏识，更是被院长千金爱娃所爱慕。 然而，就在天马春风得意之际，因为一次违抗院长的命令救了一名生命垂危的小男孩约翰，之后他的生活完全发生了变化。他牺牲了自己的一切拯救了那位男孩，却没想到自己亲手复活了杀人怪物——“MON...
主要讲述了标本管理员邹启之因为里岛盲鱼标本损坏，不顾台风将至匆忙上岛，然而刚一上岛便遇到了木箱杀人事件。与此同时，岛上的实习警员王子轩不得不临危受命，调查真凶，调查过程中命案再起……
