自己写的一个学生选课系统~~
功能还不够完善，有些功能未能实现~~
传上来大家一起学习研究~~
适合初学者~-Wrote it myself, a student elective system ~ ~ function is still not perfect, some features not realized ~ ~ Chuan-up study and research with everyone ~ ~ ~ suitable for beginners
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001642s ]
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:0.090034s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002297s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002085s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002095s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003640s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002029s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003514s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014635s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002301s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 69074 [ RunTime:0.001169s ]
