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Next, define the Light.prototype.init method, which is responsible for creating a real button node in the page. Assuming that this button is the switch button of the light, when the onclick event of the button is triggered, that is, when the light switch is pressed, the code is as follows:现在最为为难的事情是河北了，项羽轻叹一声道：亚父，河北的局势你有什么看法？范增道：很明显，刘邦是瞅准了我们在淮南作战，短时间内不会全力以赴西征。当年，日寇铁蹄踏上了古城邯郸，在赵武灵王丛台上，日军大佐浅田芳雄对记者口吐狂言：要实现对占领区的军事打击、经济控制，要全面推行奴化中国的文化渗透。因兵燹水火而停办三年的邯郸庙会，在侵略者和汉奸的阴谋策划下而恢复。久负盛名的平调、落子名角“盖九州”、“七岁红”、“水仙花”等登台唱...讲述了一段90后富二代混进校园当老师，并与00后的鬼马学生们展开了一系列师生大PK的校园喜剧故事。该剧改编自徐贵祥原著小说《马上天下》。1928年大革命时期陈秋石为逃避父亲安排的婚姻，在进步青年赵子明的帮助下走上革命道路，被派往黄埔分校学习军事。瘦弱的他却颇具战略天赋，在恩师栽培下成长为将才。因信仰不同最终与恩师分道扬镳。抗日战争爆发，他带领部队以少胜多，屡立奇功。但擅自改变战术，违抗上级命令，使他数次遭贬，几起几落。十七年未回家，从未谋面的儿子陈三川成为其队伍中一名英勇战士，因恨父亲当年对母亲的绝情而拒绝相认。陈秋石满怀愧疚，默默悉心培养、调教着儿子。陈三川对父亲的态度渐渐有了改观。解放战争爆发，陈秋石因掩护战士被炮弹击中。病床前，父子二人终于相认。其后两人联手在战场上谱写出一部感人的战场传奇。反观，若是心机婊，那只能说套路太深演得太真，那杨长帆也服，至少你演倒我了。In TCP implementation, when receiving the SYN request from the client, the server needs to reply the SYN + ACK packet to the client, and the client also needs to send the confirmation packet to the server. Usually, the initial serial number of the server is calculated by the server according to certain rules or adopts random numbers. However, in SYN cookies, the initial serial number of the server is obtained by hash operation and encryption of the client IP address, client port, server IP address, server port and other security values, which is called cookie. When the server suffers from SYN attack and makes the backlog queue full, the server does not reject the new SYN request, but replies the cookie (SYN serial number of the reply packet) to the client. If it receives the ACK packet from the client, the server subtracts 1 from the ACK serial number of the client to obtain the cookie comparison value, and performs a hash operation on the above elements to see if it is equal to the cookie. If equal, complete the three-way handshake directly (Note: At this time, you don't need to check whether this connection belongs to the backlog queue).