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BeijingThe 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.《火星情报局第二季》是首档用综艺手法检验全民新奇发现的网络涵综（汪涵首档网综）。将于2016年11月4日在优酷独家首播爱游泳的少年林风有个温暖的家，爸爸林向海深爱着妈妈叶晴，弟弟林雨乖巧可爱梦想成为一个拳击手，一家四口和乐融融。 突然有一天，母亲叶晴偷偷离开了林家，从此下落不明。林向海性情大变，不寻找妻子的下落，对兄弟二人不闻不问。林风一心要找到失踪的母亲，机缘巧遇结识了体操运动员苏小可，苏小可不仅帮助林风寻找母亲，还帮林风加入体工队成为游泳运动员；弟弟林雨在母亲失踪后父亲对他突然冷落，变得争强好胜，一心想要在拳击台上证明自己的存在。一张陈年报纸把林风、林雨、苏小可卷进了上一代人尘封的恩怨！林风苦苦寻找的母亲居然身陷牢房；林雨发现自己竟然和苏小可是同父异母的兄妹；苏小可找回了曾失去的童年记忆。林风为了化解两代人的爱恨情仇，不惜牺牲自己的一切，终于重新找回一个温暖的家。林聪挡在她们中间，帮她们传递衣物和首饰，这是怕青鸾看见黎水里面的衣裳和裹胸。: 2017 Internet Weekly