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张谢义有个漂亮的妻子和可爱的儿子。在张母的呵护下，日子过得有滋有味。不久，谢义下岗，遭妻子歧视。为保住有家庭，谢义任劳任怨，在母亲的帮助下做辣白菜自谋生路。谢义从没有钱到有钱，妻子从蛮横到体贴，谢义变了。金钱使他私欲膨胀，最后迫使母亲出走。黄浦江边，张母思绪万千，面对滚滚江水，她想得很多很多。德宏父亲观念陈旧，思前顾后，省吃俭用，对德宏的超前消费意识相当反感，时时教育德宏要艰苦朴素，常将有日思无日，莫到无时思有时。他对自己的生活十分抠苛，生了病也不去医院，说是浪费钱。肝炎渐渐转为肝癌，德宏及母亲到处借钱为他治病，但最终没能留住他德宏和母亲在收拾父亲的遗物时发现了父亲藏在床板下的四万五千元钱，母子俩痛不欲生。德顺在丈母娘家过着压抑的生活，为摆脱现状，回家与母亲吵着要房。当知父亲留下钱后，便变本加厉地索取。金宝发是个助人为乐的好心人，在父亲的影响下，常常为居民办事，自称“傻人有傻福”。偶然的机会他救了厂长，厂长欣赏他的勇敢，提拔他当了销售部经理。为把销售搞上去，在部下的劝说下，请客户吃饭，给跑几步，又回头叮嘱道：不要乱跑，晓得不？老龟和儿孙们都伸长脖子看他，也不知听懂没有。香荽怀疑地问道：照你这么说，我大姐那样的，不是没人要，嫁不出去了？小葱在外本来笑得腿肚子抽筋，听到这，又是羞又是气，一个不小心，脚下一歪，差点跌倒，禁不住嗳哟一声。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).实在不行，我们唯有离开中原，去北方草原的蛮荒之地了。Having certain negotiation ability;