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
洪恩三只小猪学英语——和三只小猪一起学习简单的英语单词和对话~
狗娃死水一般平静枯燥的生活在某天他给牛喂草时被突然铲出的一个哑女给打破了。哑女的一举一动充满了诡异，在二丫的眼里哑女就是神仙姐姐，狗娃哭笑不得。狗娃犯难了！他要在从小一直喜欢他的二凤和哑女之间作出选择，周公安开始介入调查却一直无果。通过医生狗娃知道了哑女的秘密，狗娃没有退缩，他相信爱能融化一切。山上如画般的湖边，狗娃的爱心终于有了回报：哑女开口了！然而，她开口的第一句话却是“我杀人了……”
5. Be careful not to confuse the two function lists of "save for later" and "add items to wish list". Usually, the products of the saved shopping cart include the products that the shopper intends to purchase, while the wish list does not necessarily include the products that the customer intends to purchase, which may be the gifts that the shopper wishes to receive or may give.
确实，张居正拖的太久了，跑也来不及了，天.安.门破之前是来得及的，现在一定来不及了。
失杭州，不正是因为围岑港么？如今杨贼主力驻守澎湖，只怕围岑港的兵力尽出都不够，出此重兵胜败先不言，杨贼再来个声东击西谁兜得住？这才是东海之贼最可怕的地方。
For friends who often need to write English, it is quite troublesome to change the case and lowercase of letters. We can obtain quick conversion requirements through the "Start"-"Change Case" function in Word documents.
藤原龙也、伊藤英明将主演《22年的自白：我是杀人犯》(暂译)，影片改编自韩国电影《我是杀人犯》(郑在咏、朴施厚主演)，故事讲述一宗未了的杀人案发生22年后，嫌疑犯(藤原龙也饰)通过自传书坦白自己杀人，与此同时警察(伊藤英明饰)也在持续追查真相，二人展开猫鼠游戏。影片2017年本土上映。
警长福勒一直因为洛城有个私会党首脑而备受困扰·一日，他找到了三名身怀绝技的高手来协助自己调查，指示他们去当卧底·.....
杨长帆更是大惊失色，没时间思考，高举双臂喊道：都别动。
美食好简单是台湾一档美食栏目，节目主持郁芳、主厨温国智每期教你制作一种精品美食。
Repeating your current daily work for 1,000 days will not make you an expert, but will only make you fall deeper into the current situation. Psychologist Anders Erickson's principle of "deliberate practice" has refreshed our understanding of learning and practice, knowledge and skills, 10,000 hours and success. What is more valuable is that the book focuses on explaining how to practice "deliberate practice" in our work and life. As long as it is applied, we will be able to train ourselves to be outstanding in 1,000 days.
Is it the first SYN message? ->? Discarding and waiting for a period of time to try to accept the SYN retransmission message of the IP, and waiting overtime is determined as an attack message joining the blacklist.
Two patterns involving event distributors are called Reactor and Proactor. Reactor mode is based on synchronous I/O, while Proactor mode is related to asynchronous I/O. This article mainly introduces the knowledge related to Reactor pattern.
不怕林兄弟笑话，来军营之前，我还不会游水呢。
《九家之书》被称之为“男版”九尾狐，是围绕半人半兽的崔强治值为了成为人而展开的武侠剧。生来就是半人半兽的崔江置想方设法成为真正的人，演绎出奇观言情大叙事诗与令人愉快而痛快淋漓的武侠剧！虽然无法成为真正的人，但半人半兽的崔江置为了生活得比任何人都有人的尊严而孤军奋战，踏上带来感动的旅程！
迈尔斯·特勒加盟亚马逊漫改新剧《老无所惧》，该剧将由尼古拉斯·温丁·雷弗恩自编自导整季(10集)。于此同时，原著漫画作者艾德·布鲁贝克也将参与到剧本创作之中。剧中泰勒将扮演警察马丁，他深入洛杉矶犯罪组织，和来自日本、墨西哥、俄罗斯的黑帮斡旋。
05 留学生
明朝武宗正德年间，一盗匪乔装扮成北镇抚司指挥使翁泰北的模样从国库重地盗走十万两黄金，后被匪头白玉莲灭口，这一幕恰好被微服私逃出宫的天凤看到。白玉莲发现被人偷窥欲追杀灭口；天凤侥幸逃脱，并遇见长风镖局的少主郭旭。白玉莲手下自称浙江来的密使，持有总督派令，托长风镖局保送十万两黄金南下。此时皇上也秘密来到镖局，托镖局保护公主。原来公主身染不治之症，余日无多。翁泰北奉命也带着锦衣卫暗中随后护送。其间，天凤、翁泰北一行历尽艰险平安返回京城。皇帝论功行赏，长风镖局重振昔日雄风……
