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Let'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.《爱情宝典》分五个故事，其中有三个故事出自元、明杂剧经典，如《救风尘》、《绿牡丹》、《墙头马上》、《风筝误》，还有两个故事出自明清话本小说，如《小棋士》、《卖油郎独占花魁》。大苞谷忙上去搀着娘。Public class Receiver {对于全心全意等待圣诞老人来临的北北来说，圣诞前夜的降临是一件很幸福的事情，因为圣诞老人会给他带来礼物，而他的愿望就是拥有一张魔术毯子！！礼物送来了，北北小心翼翼的打开了它……出现在他眼前的竟然是一个巨大的杯子。具有魔力的杯子带着北北来到了他做梦也想不到的地方----北极！在北极遇见的第一个“人”居然是一只正在钓鱼的熊，更令北北吃惊的是这里还不只白熊一个...　　这一剑给尹旭带来了信心，给几个杀手带来的却是震撼。