4*4键盘C51单片机程序.本程序已经调试通过，4*4键盘接P1口数据从P2的8个发光二极管来表示-4* 4 keyboard C51 Singlechip procedures. This procedure has been debugging through, 4* 4 keyboard access data from the P2 port P1 of the eight light-emitting diodes to indicate the
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001071s ]
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:0.080355s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001035s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001788s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001197s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003365s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000937s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004133s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017723s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001244s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 175500 [ RunTime:0.019414s ]
