12. Os.system ()--Execute shell commands. Example:顺便告诉紫茄——她深吸一口气，缓缓道：我郑家的闺女固然不能贪生怕死，但也绝不需要贞洁烈女，玉石俱焚的事万万做不得。In popular terms, it is to use network node resources such as IDC server, personal PC, mobile phone, smart device, printer, camera, etc. to launch a large number of attack requests on the target, which leads to waste of network resources, congestion of link bandwidth, depletion of server resources and interruption of service, making it impossible to provide normal services to the outside world, and only game over can be announced. The detailed description is shown in the following figure:Zero inventory is one of the cores of JIT production mode. Only by ensuring "zero defects" can the goal of zero defects and zero inventory pursued by JIT production be realized. JIT production mode requires zero defects and zero inventory in all links of supply, production and marketing, which requires all links of production and operation to coordinate with each other, run smoothly and ensure high quality. Due to the close connection between various activities in the production process, the defects in a certain link will cause chaos in production, cause chain reactions, and cause the collapse of the timely production system, with incalculable losses. Therefore, when an enterprise should implement JIT production, it should mobilize all employees to actively participate. From the selection of suppliers to the design of products, the determination of production processes, and the production and sales of products, quality management should be strengthened in all stages. Through the self-control of relevant personnel, defects should be eliminated in real time, thus realizing zero defects in the production and operation process.2. Achievement 1, "Draw firewood from the bottom of the kettle! 25 People Battle Tangmen"母胎单身七流编剧陈小千呕心沥血写了一部古装题材大剧，原可顺利开机，却因为演员韩明星对剧本感情戏质疑过多而崩盘。愤懑难平发誓要证明自己能力的她，意外卡进了自己的剧本，变身花垣城地位尊贵但恶评满满的三公主。原本一个活不过三集 的小女配，为了活命开编剧副本，逆转荒唐人生，在不懂套路的犬系少城主韩烁和人设完美外貌满分的花垣城司学裴恒之间，最终学会爱与成长。
