网上考试系统中智能组卷算法的应用与实现
关于题目难易程度的，希望可以通过审查！
-Online examination system in the intelligent application of Algorithm and Implementation of the degree of difficulty on the subject, and hope that through the review!
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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:0.091239s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002986s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002604s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003717s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002079s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003265s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014865s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002802s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 217228 [ RunTime:0.001183s ]
