电脑音源切换控制器（带红外功能）
用AT89C251+CD4016切换控制，可控制四路以上的立体音源输入切换，一路立体声输出,有红外遥控PC功能。-Computer audio switch controller (with infrared function) with AT89C251+ CD4016 switch control, can control more than four stereo audio input switch, stereo output along the way, has infrared remote control PC functions.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000906s ]
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:0.086778s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000998s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001191s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000895s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003169s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000805s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003735s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016073s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001123s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 118068 [ RunTime:0.014992s ]
