motor speed by pwm this depond on that the pwm has t on and t off and t ther is a duty cycle that = ton / t this vary the average voltage across the mot-motor speed by pwm this depond on that the pwm has t on and t off and t ther is a duty cycle that = ton/t this vary the average voltage across the mot
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002441s ]
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:0.109443s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002393s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002366s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002367s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003963s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002104s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003595s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014573s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002488s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 309105 [ RunTime:0.001183s ]
