我自己做的一个串口通信，自己用着感觉还可以，就拿出来给大家一起看看，让大家也评论一下。-I have to do a serial communication, a sense of their own can also be used, take out everyone together to let everyone comment on it.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001856s ]
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:0.099905s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001221s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001960s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001255s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003602s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001108s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004782s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015183s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001423s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 120272 [ RunTime:0.001346s ]
