读取EASYARM2200教学实验平台上的P0.14口上的电平值，然后将值输出控制蜂鸣器-Read EASYARM2200 teaching experiment platform P0.14 mouth on the level value, and then the value of output control buzzer
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000945s ]
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:0.081807s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000912s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001135s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001152s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003085s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000814s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003483s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024481s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001428s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 164391 [ RunTime:0.020608s ]
