学生信息包括学号、姓名、院系、Email、生源地等五种，该管理程序具有添加、修改和删除学生信息的功能。-Student Information, including Student ID, name, faculty, Email, new students in five different places, the management program has to add, modify, and delete student information functions.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002036s ]
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:0.121139s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001188s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001101s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001076s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003175s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000813s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003735s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025642s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001521s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 168984 [ RunTime:0.026881s ]
