可以创建学生信息，包括：姓名，成绩，学号。并可以修改，删除，存储读取等。-Can create a student information, including: name, accomplishments, student number. And may amend, delete, read, such as storage.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001302s ]
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:0.089551s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001264s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001897s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001311s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003603s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001053s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003220s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014808s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001407s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 203460 [ RunTime:0.001295s ]
