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这等巨龟，尚未听见在别处现身，可见是张家送他的。The opposite is the product certificate and basic information.Today's problem mainly involves several: objects, triggering events, capturing events, executing processing, and blistering. This is actually the whole process of JS execution. The process of bubbling is very interesting. In fact, it is like a glass of water, but this glass of water is hierarchical, and the bottom is the object of the current trigger event. Then the higher the range, the larger the range. The top layer must be window and the penultimate layer must be document. In the process of floating up, the bubble will judge whether the layer currently reached has a binding event handling method. If there is any, the corresponding processing is executed. If not, it will continue to blister. Until you reach the top window window layer. We can do corresponding processing at any layer to prevent the event from continuing to bubble. The method is the method that calls the event object to prevent blistering. Event.stopPropagation (); The following is a process method written to verify JS event blistering.南瓜三个不停提问。In addition to SYN flooding, some other attacks by disguising the source IP address and connection parameters in TCP established connections are also possible. If an attacker can infer the IP address, TCP port number and legitimate sequence number of both parties, he can destroy the connection by resetting or modifying malicious data. In addition to camouflaging TCP segments, camouflaging ICMP packets can also terminate a TCP connection.温斯顿·杜克,莎姬·贝兹,比尔·斯卡斯加德,本尼迪克特·王,大卫·里达尔将携手出演小田埃德森自编自导的导演处女作[九天](NineDays,暂译)。影片讲述在一个远离我们所认知的现实世界的房子里,一个隐居的人(杜克饰)面见了人类灵魂化身的准候选人(贝兹,斯卡斯加德,王,里达尔饰),原因是这个人曾经拥有的特权——生育。影片将于今夏开机。Although the above code can meet the requirements, it is not easy to expand and difficult to read. If I want one or two conditions in the future, if I want to recharge 300 yuan successfully, I can win the 150 yuan red envelope, then I have to change the code inside at this time, so the coupling between business logic and code is relatively high, and I accidentally correct the wrong code. At this time, we try to use the responsibility chain mode to transfer objects in turn to realize it.