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她差点把小葱跟泥鳅那点事说出来，觉得不妥，慌忙改口，说周矮子这屋里就没几个人知道咋回事了。　　与此同时，奉教皇之命的刺客接二连三从圣域来到日本，一场足以载入史册的正邪之战就此拉开序幕……Weapons captured at the sceneLet's understand such a problem first, If our front-end development needs are the needs given to us by the demand side, It is possible that a front-end developer will deal with multiple demanders, Therefore, it will keep in touch with multiple demand parties. Then in the program it means keeping references to multiple objects, The larger the program, There will be more and more objects, The relationship between them will become more and more complicated. Now if there is an intermediary (if it is our supervisor) to meet the needs of multiple demanders, Then the demander only needs to give all the requirements to our supervisor, who will assign tasks to us according to our workload in turn. In this way, our front-end development does not need to contact with multiple business parties, we only need to contact our supervisor (i.e. Intermediary), which weakens the coupling between objects.