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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.Early JulyIn recent years, due to the strong development trend of online education and quality education, the education field that combines the two has attracted many entrepreneurs and is favored by many capital. Among them, it is considered to be another emerging track in the field of online education after children's English-the cultivation of children's thinking ability, which has become the target of capital investment. From February 2017 to now, more than 10 financing incidents have been revealed in the related fields of online children's thinking ability training, and the frequency is increasing.在泰国，大多数大学都有新生欢迎活动，但对于部分大学新生来说，这并不是一件令人期待的事。因为在少数高校，高年级学生会借机“欺负”，甚至是“羞辱”新生，而“欺负”的传统呢。2951It shows that there are 324 unconnected TCP port 22. Although it is far from the system limit, it should be noticed by administrators.