本程序针对P89V51RD2，实现对步进电机的控制，包括加速、减速、停止和启动，并且实现了lcd的显示-This procedure for P89V51RD2, implementation of stepper motor control, including acceleration, deceleration, and stop and start-up and implementation of the lcd display
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002041s ]
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:0.090572s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001949s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001962s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002205s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003614s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002094s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003693s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016401s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002509s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 135216 [ RunTime:0.001182s ]
