用qt实现文字滚动功能，文字超过设定的长度可自动从左至右不断滚动-Qt achieved with scrolling text function, the length of the text exceeds a set automatically roll over from left to right
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002308s ]
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:0.093986s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002407s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001894s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002280s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003638s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002077s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003308s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014800s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002707s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 240151 [ RunTime:0.001448s ]
