单片机控制MAX485的485总线收发程序，已经用于实际工程中！超级稳定！-MAX485 single-chip control of the 485 bus to send and receive procedures are used for the actual project! Super stable!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001395s ]
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:0.088608s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001005s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001099s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001034s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003350s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000921s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003629s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014248s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001282s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 134873 [ RunTime:0.010745s ]
