曲线拟合的java算法。本代码是采用数学中的最小二乘法原理编写的。-Curve fitting algorithm of java. This code is the use of mathematics in the preparation of the principle of least square method.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001025s ]
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:0.086235s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001043s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001228s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000990s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003094s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000941s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005997s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018186s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001488s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 43201 [ RunTime:0.019211s ]
