这是最小二乘法，比较实用，目前俺手中最小二乘法库中的一个，可以用于代码，如果你需要，可以下载，直接搬过去用。-This is the least square method, more practical, I present the hands of the least square method, a library, can be used to code, if you want, you can download directly moved by the past.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001772s ]
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:0.138682s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001217s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001944s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001244s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003592s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001001s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003196s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017527s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001405s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 299798 [ RunTime:0.001403s ]
