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The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.四个美国大男孩吉姆、凯文、芬奇、奥兹即将高中毕业，但四人都还是处男。四人因此遭人嘲笑，他们亦耿耿于怀，发誓在毕业前要告别处男。他们在毕业晚会前就举办了一场派对，企图在派队上找到自己的女孩，告别处男之身。谁知告别处男并没有想象中简单，也没有按设想进行，他们总是在最后关头因为这样那样的原因而失去机会。毕业晚会即将到来，这是他们毕业前的最后一次机会了，四人又开始加紧准备步伐。怀揣着父亲教授的一套性知识的吉姆，最喜欢看图书馆性爱“圣经”的凯 文，最喜欢大龄女人的芬奇，还有多才多艺的奥兹，在这场派队中纷纷为自己的誓言而奋斗，于是有了笑料百出的一幕幕。　　然而好莱坞是健忘的，随着年岁的增长，琼发现自己在不知不觉中已经成为了过气演员，不甘心就此销声匿迹的她决定放手一搏。琼选定了一本名为《宝贝简到底怎么了》的惊悚小说，热情邀请导演罗伯特（阿尔弗雷德·莫里纳Alfred Molina 饰）执导，之后又亲自拜访贝蒂，此时的贝蒂事业亦是百般不顺，面对琼抛来的橄榄枝动了心。就这样，在机缘汇聚之下，贝蒂和琼这对冤家再度聚首，在戏里戏外均上演着一幕幕不见鲜血和硝烟的战争。According to the MRP manager, distinguish the product production orders to be queried.Many people think that tanks will fall off control only if they do not have a vision of survival. In fact, they are not. Tanks will fall off control even if they have a vision of survival, but they just fall off very slowly.Socks are high-frequency and low-cost consumer goods. People often ignore the influence of materials and designs on wearing experience and service life. However, holes, smells, dyes and heels are all real embarrassments in life.不得不说，范文轩作为一个风险投资家，其目光还是非常高远和毒辣的。