这是一个关于最小二乘法的程序，可能有点问题，希望大虾帮忙看一下，急求。-This is one of the least-squares method of procedure, may have problems in the hope of tremendous help to see if promptly.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000796s ]
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:0.085426s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001016s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001168s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000986s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003111s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000968s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003980s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015543s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001207s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 3260 [ RunTime:0.018450s ]
