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R1 + Button-Special Skills:Because some denial of service attacks take advantage of the vulnerabilities of network protocols, others seize the limited processing capacity of the network or equipment, the prevention and treatment of denial of service attacks has become a headache for administrators. In particular, firewalls, load balancing and other equipment, which are widely used on the backbone lines in most network environments, often become the bottleneck of the whole network when DDoS attacks occur, causing the paralysis of the whole network.故事主要围绕着活泼可爱的5岁小男孩顾得白一家发生的琐事。一家三口生活在天辰小区的一间小蜗居里，房子不大，却爱意满满，每天都会闹出许多小笑话。每天都会听到妈妈叫顾得白起床的怒吼声，爸爸五音不全的练嗓子。顾得白喃喃地低语声。这些声音交织在一起从这小小的蜗居里飘洒出去，在这座城市的上空描绘出彩虹。范家受赵高迫害多年，如今巨鹿大败，秦国露出败亡之象。Next, we will enter the code writing phase of the state mode. First, we will define three state classes, namely offLightState, WeakLightState and strongLightState. All three classes have a prototype method buttonWasPressed, which represents the behavior that will occur when the button is pressed in their respective states. The code is as follows:Shift + Click　　武汉空袭、重庆空袭，刘长岭和高云天用不屈的斗志迎接日本咄咄逼人的攻势，在空战中高云天失去了一条腿，刘长岭