基于51单片机的1602显示的计算器，没有附电路，如有需要请与shenchangwei945@163.com联系-Based on the 1602 show 51 single-chip calculator circuit is not attached, if necessary, please contact shenchangwei945@163.com
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002031s ]
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:0.089026s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002473s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001940s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002314s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003651s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002064s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003246s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015719s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.009482s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 199655 [ RunTime:0.001269s ]
