直流电机测速程序 电机需带码盘 精度高 可直接设置转数 短时间内电机达到所设定的 速度-DC Motor Speed procedures required motor encoder with high precision can be set directly to a few short period of time to achieve the set motor speed
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001427s ]
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:0.087794s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001184s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002309s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003694s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001003s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003399s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014699s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001249s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 176324 [ RunTime:0.001367s ]
