一木九道热线m78

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该剧改编自上世纪80年代风靡一时的同名武侠电影，讲述了一群天地会遗孤逃脱清廷大内高手追捕的故事。二十年代初，长沙女校教员林光伟的家里来了乡下的姨妈，带来年轻漂亮的丫鬟杨秋圣。提出要把秋圣嫁给光伟做妾，生儿育女后过继给姨妈以颐养天年。具有民主思想并投身革命的光伟坚决不从，惹恼了姨妈，索性用计将光伟反锁在屋里，以图既成事实……What is deliberate practice//127FOX宣布直接预订Karin Gist及Lee Daniels负责的剧《我们一族 Our Kind Of People》，这部剧灵感来自Lawrence Otis Graham所写《Our Kind of People: Inside America’s Black Upper Class》，讲述在马萨葡萄园岛的橡树崖镇上，这里有个已经超过50年历史的黑人富人家族，而单亲母亲的女主Angela Vaughn为了使家庭名誉再次发挥光芒而发明了一种给黑人女性发质用的护发产品。但这也使得女主母亲的秘密被发挖出来，并震撼了这个小社区。万筠灵和沈爻感情出现危机。玉长风因沈爻身份也与其针锋相对爻。京中突发孔明灯案和傀儡案，矛头直指赈银案真相。沈爻在追查赈银案真相，发现十二宫遭遇危机，而他和万筠灵的感情也经受来自整个江山的考验。一直病居燕宫的留侯决定重查赈银案，玉长风奉命剿杀十二宫，将沈爻打下山崖。留侯发现了赈银案幕后竟然是杜澜初，一切真相大白。库戎借和亲之名发动战争，沈爻带领十二宫解救危局。最后在留侯帮助下和万筠灵远走高飞。