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(You must wear corrective glasses and carry backup glasses when flying. )If we return to reality, No matter what kind of love, After getting married, they are all faced with daily necessities, From two people to two families, Needs to work hard, many examples around, from an intellectual woman to dissatisfied housewife, to that step, who will mention the love of that year, many people said that after the passion retreated, love can be transformed into family affection is the best state, but this is not the marriage state I want, always feel that life needs love, surprise and emotion.有小妹在，这些人想要占到点什么便宜，似乎是不可能了。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.The ack reflection attack can be carried out by using the ack response of the server side of the three-way handshake.ps.追更的童鞋们，免费的赞赏票和起点币还有没有啊~515红包榜倒计时了，我来拉个票，求加码和赞赏票，最后冲一把