利用8051单片机驱动H6152射频读写模块,实现对非接触式射频卡的读写操作。-8051 drivers to use radio frequency reader module H6152, to realize non-contact RF card read and write operations.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002642s ]
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:0.142469s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.003083s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003396s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.007656s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006960s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002590s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006513s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.026278s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003393s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 187697 [ RunTime:0.001636s ]