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Visitor mode: Pay attention to the change of encapsulation object operation, support adding new operations to the class structure at runtime, and define new operations on these class instances without changing various types in the class hierarchy.轻轻笑道：亚父在，东来实不敢班门弄斧，羽哥对此也早有谋划，还是先听您和羽哥的意思吧。你可以在学校里挖掘点人才，真要不行，去人才市场转转。In addition to solving the port problem of A, the serial number problem also needs to be paid attention to. The serial number corresponds to the sliding window. The fake TCP packet needs to be filled with the serial number. If the value of the serial number is not in the sliding window of B when it is sent to B before A, B will actively discard it. So we need to find the serial number that can fall into the sliding window between AB at that time. This can be solved violently, because the length of a sequence is 32 bits, and the value range is 0-4294967296. If the window size is like 65535 under Windows I caught in the above figure, I only need to divide, and I know that at most I only need to send 65537 (4294967296/65535=65537) packets to have a sequence number fall into the sliding window. The desired value can be calculated quickly by exhaustion on multiple control hosts.Iron Painting and Silver Hook is a high damage skill, High damage depends on the gun soul, and it should be noted that five consecutive sweeps can be superimposed on two layers, specifically the second sweep, and the fifth sweep will be superimposed once each. It is suggested that five consecutive sweeps and then three consecutive stabs can be superimposed on three layers of gun soul in 5-6 seconds. At this time, the cooling of this skill has not been completed, so the skill of boss is required.武林盟主圣剑门五年一次的招收弟子又开始了，吸引众多尚未涉足江湖的年轻人前往应试。成风（黄宗泽 饰）自小就跟着成大娘、大哥成功跑江湖，以卖艺为生，为了有出息，他也前往投考圣剑门。本来凭成风的身手是无法入围的，但武林前辈高手东方无涯（黎耀祥 饰）得知圣剑门今次招考的弟子有机会参与威力无穷的天玄北斗阵的修炼，而且见成风骨格清奇，于是断定他比非池中之物，为通过成风一窥天玄北斗阵的奥妙，于是暗中帮助他顺利考入了圣剑门。同时考入的还有孤傲的荆磊（郑嘉颖 饰）等，成风和一班师兄弟成了好朋友，凭着热心肠，孤傲的荆磊也和他成了肝胆相照的好兄弟。江湖险恶，荆磊在圣剑门发现了当年娘亲身死的秘密，而成风的身世之谜更是他从来没有想到过的，江湖又一场腥风血雨不可避免……