清除系统垃圾，不占用内存、空间，方便使用，比优化大师好，本人已使用很长时间。-Garbage removal system, not memory, space, user-friendly, better than the optimization of the master, I have been using for a long time.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001190s ]
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:0.068380s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001008s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001250s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001057s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003314s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000814s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003718s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016569s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001329s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 162275 [ RunTime:0.296940s ]
