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:
If the spam sent by CSRF still has worm links, those friends who receive these harmful information will become the spread of harmful information in case they open the connection in the private letter, thus tens of thousands of users will be stolen and planted Trojan horses. The application of the whole website may collapse in an instant, with users complaining, users losing, the company's reputation plummeting and even facing bankruptcy. Once on MSN, Samy, a 19-year-old American boy, used CSS's Background vulnerability to successfully infect more than 1 million users with his worm within a few hours. Although the worm did not destroy the entire application, it only added "Samy is my idol" after each user's signature, but once these vulnerabilities were exploited by malicious users, the consequences would be unimaginable, and the same thing happened on Sina Weibo.
Return user2;
是不是，娘？郑氏笑着点头，说知我者，闺女也，又道：我是那天下雪才想起来的。
ABC直接预订《灵书妙探 Castle》主创Andrew W. Marlowe及其妻子Terri Edda Miller开发兼执笔的新剧《卷土重来 Take Two》，并已找了Rachel Bilson及Eddie Cibrian当主演。《卷土重来》是部轻松向的程序剧，讲述女主角Ella（Rachel Bilson饰）以前是部大热警察剧的主角，但处于低迷的她为了重振演艺生涯，于是跑去找粗鲁﹑栽跟头的私家侦探Eddie（Eddie Cibrian饰），希望观摩真实案件来作为角色研究。Eddie原本很讨厌这种保姆似的工作，但Ella却用演技以及演了200集警探的经验，协助了Eddie的调查；而当新闻开始吹捧Ella成功解决一件高调大案时，Eddie发现一堆新客户来电，表示希望聘请主角二人查案。
沈悯芮柔声一笑，瞪了眼杨长帆：他已经走了吧？走了，有急事。
中国北方黄川市广播电视台新闻女主播杜若璇、市文联退伍兵转业干部卢振亭、返乡创业大学生田永青，三位青年共产党人，在不同原因下，积极响应党中央号召、主动接受了扶贫攻坚工作。他们分别来到榆州县燕山镇的三个深度贫困村，深入农户、调查摸底、精准扶贫，历经坎坷、无怨无悔，在镇村干部的帮助下，由开始抵触农村的落后转变到积极主动帮扶，坚持扶贫扶志，激发贫困村民内生动力，带领村民流转土地发展农业致富产业、实施易地搬迁扶贫、打造旅游特色小镇，把绿水青山变成了金山银山，带领村民创业共同建设美丽乡村。他们也在扶贫事业中实现了自己的人生价值，展示了最美的风采。
人在同一天走进同一座军营，吃同样的饭，叠同样的被子，走同样的正步，却因为性格、动机、世界观的差异，彼此之间产生了各样的矛盾与冲突。在经历了一系列的挫折与磨练之后，他们完成了从普通老百姓到优秀军人的转变，练就了铁打的骨头，结下了生死的战友情谊，更铸成了为祖国、为人民一切行动听指挥、甘愿牺牲奉献的钢铁信念，表现出了和平年代的军人崇高的荣誉感与责任感。
? ? ? ? No matter what language we write, we basically need two things, one is called editor and the other is called compiler. We can choose many editors, for example, we can use sublime text or eclipse, but we can not choose so many compilers. The tool we write today is codeblock + Gcc, codenlock is the c source editor, and Gcc is the running environment.
India's Kyanbitu vegetable market is booming. Here, there are a group of very poor peddlers. Every morning, they will borrow 1,000 rupees from the rich, then go to purchase the goods, and get 1,100 rupees back after selling them, while at night, they will give back 1,050 rupees to the rich.
一个意外得到礼物的女孩能看到鬼魂。她将永远面对危险的事件，因为帮助这些鬼魂。她受到不相信神秘事物的摄影师的帮助。起初，他们互相争斗，但后来因为他们的亲密关系而变成了爱。
然后找了几块饼干吃了，就打开电脑，开始写《寻秦记》。
"I see, you said the most difficult moment should be the 20 minutes of gun group transfer fire? So in essence, the reason for the fire gap is not that the artillery group has no ammunition, but that the ammunition is used elsewhere, that is, in the task of annihilating the sudden appearance of the Vietnamese artillery group, so during this period of time, you can only rely on yourself to resist the Vietnamese attack, right? "I said.
Gracia Nilbas
石油国际会议即将在中国南岛市召开，会议的主要内容是亚布国的石油项目竞标。 受国家安全部门指令，反恐专家郑雨龙和公安局刑警大队长孔亮共同负责会议的安全防卫。孔亮和郑雨龙发现破坏会议的种种迹象，开始进行艰难而危险的追踪。随着调查的深入，一个庞大的国际恐怖组织浮出水面，真相似乎昭然若揭，孔亮却陷入到一个无形的圈套之中，与此同时，他的一切行动都被郑雨龙派人跟踪。曾被孔亮亲手抓获的犯罪分子疯子恰在这时越狱，潜回南岛寻找报仇时机...... 庞丽难耐郑雨龙的冷落，不慎被小白脸诱惑而红杏出墙。证人被神秘的害死在她工作的病房。为保全丈夫的清白，庞丽愤然将小白脸杀死。但一切都为时已晚，国家机密已被她泄露，庞丽羞愧无言，割腕自杀。目睹妻子决然而死，郑雨龙痛悔自责，主动递交辞呈，千斤重担再次落在孔亮的肩上。孔亮临危受命，带领安全总部的同事开始了与时间、与对手的赛跑。在竞标会开幕的前一天，慈善计划进入倒记时。与杀手交战中，孔亮负伤，受到女友的百般疼爱，令人面红耳赤，瞠目结舌。女儿被网友吸引离家出走，苏琳
人气小说《MESSIAH警备局特别公安五系》最新真人电影。描绘舞台版《MESSIAH铜之章》与《MESSIAH白银之章》之间的故事。
Two-way unrequited love, sweet and warm.
英雄Crane解救了被恶魔Zaal奴役的人们，自己却被刺中了心脏，血流了七天七夜，一百个人喝了他的血，继承了他的强健，野蛮人一族也由此诞生。但Zaal每一千年就复活一次，蒂娜需要一个普通人喝下一碗汇集所有野蛮人的血来完成转变。军阀Volcazar想要通过这次机会变成恶魔称霸Metalonien大陆。他进攻了野蛮人村子，抓走了几乎所有的野蛮人，却漏掉了瘦小胆怯的Ronal。在命运的驱使下，拯救同胞生命的艰巨任务就落在了他的肩膀上。叔叔临终前告诉Ronal去找北方的预言者帮忙，没有自信的他只能启程。 但英雄的冒险之旅从来就不会孤单，游唱团主唱Alibert加入了他。途中又结识了一心想找一个能打败自己的丈夫的的Zandra女战士，在其他村子里又找到了精灵向导Elric。要获得胜利，Ronal的前方可谓困难重重…
Rules for POSTROUTING can exist in: mangle table, nat table.
