这是一个有关数据结构的习题集，里面包含了有关数据结构各个章节的习题以及答案，可以方便同学们下载使用。-This is a set of exercises on data structure, which contains information about data structures, as well as answers to the various chapters of exercises, students can easily download.
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SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.104915s ]
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