读取按键状态，按键1按下，P2口连接的发光二极管从左到右亮；按键2按下，P2口连接的发光二极管从右到左亮。-state reading keys, press a button, P2 connectors of the LED-from left to right; 2 Press the button, P2 connectors of the LED-from right to left.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001261s ]
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:0.087123s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001195s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001874s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001164s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003544s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000990s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003170s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014523s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001364s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 211213 [ RunTime:0.001347s ]
