单片机AT89S52实现的玻璃厚度控制，有2*4键盘，6位数码管显示，程序的注释较详细-SCM AT89S52 achieve control of the thickness of the glass, 2* 4 keyboard, six digital tube, the procedure in more detail Notes
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001029s ]
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:0.061133s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001090s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001208s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000889s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003101s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000863s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003518s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014859s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001170s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 115642 [ RunTime:0.013564s ]
