51单片机红外接受和发射,利用51单片机的串口通信。发射也是通过串口发射。-51 Single-chip infrared accept the use of 51 Single-chip serial communication. Launch is fired through the serial port.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001131s ]
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:0.081891s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001101s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001127s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001047s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002976s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000906s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003668s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014038s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001169s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 189449 [ RunTime:0.012702s ]
