一个服务器端，两个客户端：student和teacher两者权限不一，更能不一；能进行简单的选课、发送通知等功能-a server, two clients : student and teacher competence of the two different and more mixed; Can a simple classes, sent notification function
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001398s ]
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:0.074259s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001032s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000971s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003060s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001000s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003661s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014007s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001068s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 117149 [ RunTime:0.015123s ]
