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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.原班人马在第二年的续作，日本人气漫画《金田一少年事件簿》真人版。12越听越不爽，尹旭正要反唇相讥，一直沉默的熊心却发话了：宋爱卿辛苦了。老三曾是名军人，两次偶发事件却改变了他的人生，一次意外脑部受伤，使老三的思维变得与年龄不相符的天真和乐观而提前退役；一次见义勇为受到表扬，使老三发现了自己生活中最大的快乐就是击倒坏人的一刻，于是，老三决定用他的拳头改变世界。 荣哥是名非法古董商，沉稳老练心思缜密的他冲着稀世文物岳家枪而来，并势在必夺的执行着抢夺计划，荣哥认定没人挡的住他，因为他认为世界可以被自己的智慧改变。 两个都想要改...韩信现在是奉了汉王的诏命去征讨齐国的，因此可以说是名正言顺，即便是汉王阻止也来不及，反倒会打草惊蛇。