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So as to assist in supporting the shooting trunk. In this way, the tension of the erector spinae group on the lower back can be reduced, because this part of the supporting force is completely generated by the contraction of the erector spinae group on the lower back without using the weightlifting belt.For the convenience of the experiment, we directly use the functions in libc.so.6 as the attack functions to be executed. This is a C program runtime in Linux, which holds a large number of available functions and contains system ("/bin/sh"). Therefore, we can use ROPgadget tool to obtain the code fragments that we can exploit, and use pwntool to exploit the vulnerabilities of vulnerable programs, thus achieving our attack purpose, that is, running system ("/bin/sh"). In order to facilitate the subsequent use of ROPgadget tool to find gadget and attack, it is necessary to copy the libc.so.6 file to the operation directory. First, use the "ldd" command to view the source directory, and then use the "cp" command to copy it to the operation directory.2016年5月26日，正式成立“方块学园”。“方块学园”是优酷土豆联合《Minecraft》知名UP主“籽岷”、“炎黄蜀黍”、“大橙橙橙子”、“粉鱼Pink__Fish”和“五之歌”等其他UP主共同打造《Minecraft》国内原创游戏同人剧频道。该游戏的视频节目在优酷每日播放量也超过千万。上述提到的五名UP主在优酷土豆的自频道总订阅数超过770万，视频总播量超过17.5亿，其中仅“籽岷”一人就拥有307万粉丝以及10.7亿视频播放量，在优酷游戏频道排名第1，全站第1，是国内《Minecraft》游戏视频播放量最大，最受欢迎的UP主。“方块学园”情景短剧的故事场景是一个学园，剧中主角们的学习、生活等日常都在这里展开。学园校训是“格物致知”，而“格物”即代表方块。可以说，“方块学园”是籽岷等UP主在《Minecraft》中的延续和再开发，剧中角色的特点是他们在《Minecraft》这个游戏中的投影。只可惜那些狗官阳奉阴违，暗中偷袭，坏了船主的大事。这在现代中学生都懂的知识，像打火机原理一样简单的东西，对古人来说却算的上一次技术飞跃了。The structure diagram of the singleton mode is as follows: