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Ghost drug G7Resource confrontation is also called "dead shoulder", that is, through the piling up of a large number of servers and bandwidth resources to achieve the effect of calmly dealing with DDoS traffic.Avoid coupling the sender and receiver of the request, make it possible for multiple objects to receive the request, connect these objects into a chain, and pass the request along this chain until an object processes it. This is the responsibility chain mode. In the responsibility chain mode, it is possible for each object to process the request, thus realizing decoupling between the sender and receiver of the request. At the same time, the responsibility chain mode simplifies the structure of the object, which makes each object only need to refer to its successor without knowing the whole chain, thus improving the flexibility of the system and making it more convenient to add new request processing classes. However, we cannot guarantee that all requests can be processed in the responsibility chain, and it is not conducive to observing runtime characteristics.滩涂即是涨潮时海水淹没海滩的最高点，与落潮后海水所在最低点，这中间的位置，各种海域与情况，滩涂大小也不一。By Lemon今晚咱们不出任务，可以好好地睡一觉。