学生成绩管理个超酷的学生信息管理系统，用PB做的，可作参考--student performance management-rap Student Information Management System, the use of PB done, can be used as a reference-
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001227s ]
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:0.106204s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001632s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003099s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001643s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006050s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001618s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005635s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019817s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001529s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 168779 [ RunTime:0.001288s ]
