电机调速是单片机或DSP硬件平台结合电机运行机制设计相应算法，并以软件实现-Motor speed is a microcontroller or DSP hardware platforms, operating mechanism with electrical design corresponding algorithms, and to software implementation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001258s ]
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:0.092551s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001680s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003251s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001742s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006349s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001482s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006150s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.026457s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001937s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 250595 [ RunTime:0.001570s ]
