一个不大成熟的学籍管理系统，有界面，有注释，但还不大成熟，希望高手指点一下。-a little mature unsuccessful management system, interface, Notes, but not yet big mature, master guiding about hope.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001320s ]
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:0.106508s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001447s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001913s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001249s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005380s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001481s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006096s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024686s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001920s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 68352 [ RunTime:0.001561s ]
