介绍了嵌入式linux下gui开发工具qt，利用qt提供的qpainter进行画图。取得了很好的效果
-Introduced under linux embedded gui development tools qt, use qt to draw qpainter provided. Achieved good results
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001070s ]
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:0.059906s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001019s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001192s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000906s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003012s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000843s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003724s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.022603s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001344s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 176821 [ RunTime:0.017425s ]
