要能够打印出条码条，目前我的条码还不能打印出条码，我不知道问题出在哪，我想请问哪位高手给我点指示。-to be able to print bar codes, I present the barcode can not print bar codes, I do not know what was the problem, I would like to ask the experts who point to my instructions.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002049s ]
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:0.090105s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002354s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002049s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002186s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003765s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002123s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003429s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015823s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002436s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 120876 [ RunTime:0.001218s ]
