多级班级开放等级： 四个班级开放等级，班级管理员可以根据需要选择，以避免班外同学的干扰。-Multi-grade classes open : four classes open class, the class administrator can choose to avoid classes students outside interference.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001731s ]
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:0.139313s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001696s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003048s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001746s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005653s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001431s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005446s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015477s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001382s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 299085 [ RunTime:0.001347s ]
