,c51 是经典的单片机，简单，精通51单片机，在学习其他的单片机 很易上手
-, c51 is the classic single-chip, simple, fluent in 51 single-chip, single-chip microcomputer in the learning of other very易上手
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002072s ]
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:0.085865s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002360s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002021s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002102s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003606s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002046s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003511s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014624s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002225s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 133930 [ RunTime:0.001094s ]
