运行在arm平台linux中，使用qt软件开发，可以接受串口数据，并且在打开的窗口中用曲线的方式即时显示出来。程序中用到串口方面以及qt图形界面和c++知识。-Run on arm platform, linux, using qt software development, can accept serial data, and open the window curves method using real-time display. Procedures used in serial port as well as qt graphical interface, and c++ knowledge.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001341s ]
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:0.089895s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001503s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002283s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001113s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003194s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000828s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003862s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020698s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001064s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 61365 [ RunTime:0.024782s ]
