很实用的PLC梯形图程序，小车运动控制的具体实现，可用于三菱、欧姆龙、西门子-PLC ladder practical procedures, vehicle motion control specific realize that can be used Mitsubishi, Omron, Siemens
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001188s ]
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:0.072557s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000948s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001196s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000983s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003139s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000988s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003531s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015101s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001080s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 199544 [ RunTime:0.025854s ]
