//最小二乘法直线拟合
m_FoldList为关键点(x,y)的链表
拟合直线方程(Y=kX+b)
-//linear least squares fitting m_FoldList as the key point (x, y) of Chain fitting linear equation (Y = C/56 b)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001908s ]
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:0.146889s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001794s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002336s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001570s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006452s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001680s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005979s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021321s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001961s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 314927 [ RunTime:0.001875s ]
