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In fact, delegate variables (parameter lists) and events execute methods in this form.In TCP protocol, messages arriving at the destination will enter the buffer of the TCP stack and will not be forwarded to the receiving system until the buffer is full. This is to minimize the number of times the system empties the buffer. However, the sender can force the receiving system to clear the contents of the buffer by sending a TCP message with a PSH flag of 1. The TCP PUSH + ACK attack, like the TCP SYN attack, aims to deplete the resources of the victim system. When an attacker sends TCP messages with PSH and ACK flags set to 1 to the Target host, these messages will cause the Target system to clear all TCP buffers (whether the buffers are full or not) and respond with an acknowledgement message. If this process is performed by a large number of controlled hosts, the system will not be able to process normal data, resulting in denial of service.臣兄妹不过是普通人，并无太多过人之处，只因大靖朝有许多像胡将军、汪将军、忠勇公何老将军，还有镇南侯顾将军那样的忠义之士，我兄妹二人才得以有今日。他见这人好啰嗦，只顾问他小葱姐姐的事，心里警惕起来：女娃儿的事你老打听做啥？一抬头，只见坐对面的大哥瞅了自己一眼，板栗表哥也笑眯眯地看着他。He Yihe especially likes a statement made by Tang Wang, a Mexican witch doctor, "Everyone has a god of death, right behind his left shoulder. When I don't realize something, look back and ask, 'What do you think, man'. Remind me of the fact that I will die all the time so as to lead a meaningful life."ViewGroup1. DispatchTouchEvent () returns false->? With the development of Internet, container technology has been paid more and more attention by large-scale application manufacturers. Docker, as a container of Paas platform, has attracted the attention of many technicians in recent years and is becoming more and more popular.