实现电机转速自适应控制，当转速超得太大时，通过该控制能使转速降到正常水准-To achieve adaptive control of motor speed, when the super-speed too, through the control can speed down to normal level
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001085s ]
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:0.062483s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001003s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001185s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000865s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003216s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000679s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003588s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014776s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001144s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 240499 [ RunTime:0.012889s ]
