用于排队叫号系统的中央显示大屏控制程序。可以循环滚动显示文字，最大5层。-Call queuing system for its large central display screen control procedures. Could be re-rolling display text, the largest 5 layer.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.004633s ]
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:0.134940s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.014253s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001416s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004756s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000944s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001068s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 272842 [ RunTime:0.013688s ]
