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
从小在省委大院长大的杨志南与同是高干子女的尚莉莉偶然邂逅,两情相悦。而与志南一同长大的同学兼好友周海涛竟也同时爱上了莉莉。志南的母亲却早已把有望成为省委副书记的宋光明之女宋乔娅看作内定的理想儿媳,因为这对志南的父亲、副省长杨越清在政治上是有帮助的。周海涛的妹妹周海青与志南青梅竹马,她错位地把兄妹情当作爱情,于是她找到莉莉和乔娅大闹了一场。
《蓝色星球II》将由大卫·爱登堡爵士主持。在长达4年的拍摄过程中, 制作团队共执行了125次的探险,水下拍摄时数长达到6000多个小时。与2001年首播的《藍色星球》相隔16年之后,制作团队透过新的科技技术突破以往限制,将许多过去未知的地带、惊人的生物及其令人瞠目结舌的举动呈现在观众眼前
网络电影《星际高手》由李翰韬导演,讲述了一个学渣回头金不换,摇身一变成学霸的故事,即将在优酷上映。一碗牛肉汤将引发怎样的“血案”?敬请期待。
著名企业家武蜀勤之子李波罗拒绝走子承母业的人生,多次出格反叛,母子关系几近冰点。李波罗送好兄弟潘东君报考村官之际,邂逅心仪的女孩秋云,在爱情的冲动下李波罗走上村官之路,跟主管村官招考工作的秋云打赌要做出一番事业。因其母内定的未来媳妇儿、青梅竹马的张倩倩从中作梗,李波罗和秋云的情感误会迭出,秋云死在地震中,李波罗也自此消沉。干练且个性十足的女孩赵默出现,在公推直选中脱颖而出,李波罗也在赵默睿智巧妙的连番激将下再次振作起来,和潘东君及其他村官一起,终于做出一番令其母刮目相看的事业,同时李波罗也收获了他跟赵默的爱情。
杨长帆忽然转过头去,望向人群中的胡宗宪,自己来还是我来?胡宗宪面无表情:不劳船主了。
Nine, tensioning film how to model?
Editor of Wang Yuqian Henan Eye Cancer Girl Series Report: Wang Qiang Liu Haichuan
14.1 Unqualified skin and accessory diseases that are difficult to cure.
In other words, if you hit the back water with a gun, the final damage will be reduced by 60%. . .
不过当时楚军是一直咬着汉王刘邦在打,汉军的损失是最大了,只怕是二十万大军所剩不足十分之一二……李斯叹道:汉军遭遇此等大败,中原诸侯墙头草必然又要倒向项羽一边了。
Stop it. Let's play Blue Fat first.
Data poisoning
这时,上房有丫头出来催,说太妃等急了,怎么只管笑,都不进去呢?众人急忙都进去上房,山芋和南瓜给祖母磕了头,将考试的情形大致说了。
与将贵(柄本佑饰)一起与父亲·海江田(石桥凌饰)相对,白夜知道了自己出生的秘密,获得了自由。高森综合医院在院长真壁(小手伸也饰)的领导下,恢复了往日的活力,白夜也在CDT工作,为了实现与去世的前院长严(石坂浩二饰)的约定,以医生为目标而努力学习。
At this time, the cold wind is still blowing outside the window.
There have been written rumors that there were witches during the Sino-Vietnamese War? Or is it a miraculous thing like Dharma Master Dharma?
Potentilla erecta
农村干部赵天亮忠于职守,大公无私为群众服务,真实地反映了新农村新面貌,展示了新农民新风采。