算24点，若有解则输出每一步计算步骤，若无解则返回“No answer！”-Count 24 points, if so, what solutions are output every step of the calculation steps, if there are no solution is returned
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000907s ]
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:0.121980s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001409s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002063s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001589s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004540s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000955s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003685s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015191s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001169s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 133791 [ RunTime:0.013383s ]
