编写串口通信程序，可以不同的格式传输，可以自动发送和手动发送。-prepared serial communication procedures, different transmission formats, it will automatically send and sent manually.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002644s ]
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:0.140181s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002908s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003107s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002985s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005961s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002234s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004255s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019207s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002666s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 121357 [ RunTime:0.001217s ]
