一个带界面的在线测试系统，从数据库中随意抽题，在线回答，并且反馈答案。-An interface with the online testing system, arbitrarily drawn from the database title, on-line to answer, and the feedback answer.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001359s ]
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:0.097421s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001342s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001960s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001341s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003727s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001160s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003307s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014474s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001462s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 210023 [ RunTime:0.001278s ]
