一个基于MMU的操作系统，ARM9上的,适合学习linux操作系统，注意把文件格式改为tar格式-an MMU-based operating system, ARM9, suitable for learning Linux operating systems, file formats attention to tar format
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.004455s ]
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:0.083745s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000937s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001280s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000919s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003221s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000772s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003716s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014923s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001023s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 189815 [ RunTime:0.013430s ]
