输入平面上直线上采样的两个点坐标，求解直线方程。可方便得到一次方程-importation plane straight on the two sampling points coordinates and solving linear equations. Linear equation can be convenient
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001425s ]
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:0.093535s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001308s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001239s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003732s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001065s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003178s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014659s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001339s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140249 [ RunTime:0.001398s ]
