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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:Let's continue to use the monomer mode to implement a pop-up demo;. Let's not discuss the use of single mode to achieve, we want to see how we usually write code to achieve the pop-up effect; For example, we have a pop-up window, which is definitely hidden by default. When I click, it needs to be displayed. Write the following code:杨长帆也照例笑呵呵招待何永强坐下，招呼凤海，找个年轻些的女帮工泡茶。四个好友开始了一次奢华的品酒之旅，很快就发现她们要为自己的生命而战……Demo Xia + Diao Shen Xia: These two are put together to say, after all, there are 50 steps calling the kettle black, and no one is much better than anyone. Of course, don't belittle yourself. Everyone came from this stage. At this stage, those who are not good at programming will practice programming well, and those who do not understand the principles will read books and understand the principles. Doing it by hand is the first thing, and then constantly changing the parameters of some models, looking at the changes in the effect, then looking at the mathematical derivation behind it, and understanding the reasons, which is much better than looking at the derivation of a lot of mathematical formulas first, and starting to write code in a dizzy way.　　叶桐山负责专案，爱徒郑军、夏小琦进入专案组。林天歌的好友鲁卫东等一大批警校同学也无缘无故成为嫌疑对象，遭到旷日持久的审查。邓龙暗中侦察却被叶桐山逼走，致使商秋云再陷孤单。叶桐山找到了新线索，排除了所有嫌疑人，但终因办案不利被解职，女侦探方丽也就在这时走到了他的身边，用女性的温柔关心着他。