一个通过方向判别芯片进行角度计算的程序，实现简单的方向判别功能-Determine the direction of a chip through the perspective of the calculation procedure, the direction of the realization of a simple discriminant function
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001893s ]
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:0.086656s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001880s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001922s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002215s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003807s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001956s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003267s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015115s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002330s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 185807 [ RunTime:0.001144s ]
