AT89C4051单片机的产品手册，详细地说明了AT89C4051单片机的各项性能指标、产品结构和工作原理。-AT89C4051 microcontroller product manuals, detailed description of the AT89C4051 MCU performance, product structure and working principle.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001128s ]
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:0.063221s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001027s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001113s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001003s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003051s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000838s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003743s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015369s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001205s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 285674 [ RunTime:0.017578s ]
