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State mode and policy mode are like twins. They both encapsulate a series of algorithms or behaviors. Their class diagrams look almost identical, but their intentions are very different, so they are two very different modes. The policy pattern and the state pattern have in common that they both have a context, policies or state classes to which the context delegates the request to executeThis time, the handwriting of the interface is undoubtedly one of the most striking events in the industry this year. Many people's circle of friends has been swept by the incident. In the media group, the winners of the award, such as interface reporter Liu Xiangnan, have received congratulations and it is estimated that many red envelopes have also been given.The traditional way:In the past three months, the average number of reflection servers that have launched DDoS reflection attacks using domestic servers, hosts and other facilities is 2,812,943. The monthly increase rate of domestic reflection server resources is 81%, and the extinction rate is 84%. Compared with the average monthly increase rate of 85% and the extinction rate of 71% in 2017, the extinction rate shows an increasing trend. There are 75,777 reflection servers that have been active continuously in the past three months. The distribution of their provinces and operators is shown in Figure 18, mainly located in Liaoning Province, Guangdong Province and Jilin Province, with Unicom accounting for the largest proportion. Among them, there are 85 domestic reflection servers with a history of active months of more than 12 months.王突听了不信：真的？那小子能这样大度？王尚书沉脸道：别小觑人。ABC官宣正式续订《神盾局特工》第六季！不过往季都有22集而本季却只有13集。太极功？云峰眼睛几乎发光，张三丰创出这部至高武学的刹那会不会天生异象。