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In 1995, GoF (Gang of Four) co-published the book "Design Patterns: Basis of Reusable Object-Oriented Software", which included 23 design patterns. Since then, GoF has set a milestone in the field of software design patterns, known as "GoF Design Patterns".Gray-brown: eggplant, water caltrop* …后来说得兴起，外边站的人也进去了，一起蹲在茅坑边说话。又指着花生和玉米，不用问人了，肯定是这俩猴儿干的。The main data collected during the MDT meeting should be entered into the database in time, and the recording personnel should be trained to ensure timely and accurate recording of information and reduce the impact on MDT.Copper clad aluminumCompared with resource consumption attacks, service consumption attacks do not require too much traffic. They mainly carry out accurate fixed-point attacks according to the characteristics of services, such as CC of the Web, retrieval of data services, download of file services, etc. Such attacks are often not aimed at congesting traffic channels or protocol processing channels. They are busy situations in which the server always handles high-consumption services and thus cannot respond to normal services. The detailed schematic diagram is as follows: