Linux 默认情况下，PC 喇叭发出的嘟嘟声音警告（System Beep）.
本程序可以让你随意控制蜂鸣器-Linux by default, PC speaker voice warning issued toot (System Beep). This procedure allows you to manipulate the buzzer
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.012789s ]
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:0.095523s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001854s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001939s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002682s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006294s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002457s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003349s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015020s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002931s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 141728 [ RunTime:0.001209s ]
