自己写的一个学生信息管理系统，由于掌握的知识不是很多，故此系统功能比较简单，但可以作为一个参考-A student to write their own information management system, because not a lot of knowledge, the system is relatively simple, but can be used as a reference
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002199s ]
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:0.091127s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002995s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002238s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002687s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003862s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002530s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003493s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016503s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002730s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 245242 [ RunTime:0.001306s ]
