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B) Design principles. Many people have listed seven principles, such as single duty principle, opening and closing principle, Richter substitution principle, dependence inversion principle, interface isolation principle, composite reuse principle and Dimit principle. LSP, I elevated it to one of the three cornerstones of the object-oriented paradigm; Single responsibility and interface isolation are mainly used as the principle of responsibility division in object-oriented analysis/OOA, which you can not pay much attention to at this time. Relying on the inversion principle, I throw it away as garbage, because the opening and closing principle or directly "relying on abstract type principle" already contains the essence of relying on the inversion principle, while the dross of relying on the inversion principle is inherited by IoC. Of course, the pullback, I emphasize very much. Therefore, you need to master the abstract dependency principle (OCP), one-way dependency principle (including the learning of callbacks) and the minimum dependency principle (composite reuse principle, Dimit rule).离异的刘展鹏和丧偶的杜敏秋想要再婚，却遭遇了意想不到的阻力。先是展鹏的女儿茉莉为了让父母复合而进行各种破坏，接着是展鹏母亲刘兰芝对新儿媳妇诸多挑剔与不满，但最让敏秋头疼的还是展鹏和前妻江天蓝的藕断丝连。尽管展鹏赌咒发誓和天蓝接触只是因为女儿，敏秋也暗暗责怪自己太小气，但每次见到展鹏为天蓝的事操心，心里总不是滋味。在经历了一系列啼笑皆非的事件之后，展鹏和天蓝终于让敏秋明白，离婚后的夫妻不应该是仇人，因为他们早已经是亲人了。敏秋坦然接受了天蓝这个亲人，最终和展鹏迈进了婚姻的殿堂。过去：爱情、幸福、缘分。5. Site and service outlets:《神枪游侠》讲诉的是在英国殖民时期的1759年，罗杰斯奉命率领骑兵队深入西北边陲地带，扫荡由法军撑腰的印第安人，不料功亏一簧，被他们从地图上没有的路线逃跑了。在骑兵队追踪的过程中，遇到印第安向导叛变及部队携带的火药爆炸等意外，又有高山大河等天险，但罗杰斯始终不放弃任务，直到打通前往太平洋的西北通道。　　韩联社首尔2月5日电 柳好贞、池秀媛、吴尹雅将联袂主演下月开播的SBS周末剧《不是谁都能爱》。The arrangement is as follows: Round 1: 1-0,