linux下定时器的应用，比较好用。本文讲得比较详细，对照着即可实现。供参考。-linux timer under the application more user-friendly. To put this in more detail, the right look can be realized. For reference.
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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:0.079418s ]
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