qt写的蓝牙测试，可以在linux上面跑，可用于连接，扫描，发送数据，断开，等操作,(QT written in Bluetooth test, you can run on the Linux, can be used to connect, scan, send data, disconnect, and other operations)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.146095s ]
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:0.259843s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.033720s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001957s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001409s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005372s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.005839s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007652s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.032664s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.021178s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 54548 [ RunTime:0.050469s ]
