单片机与PS2键盘相连的应用，可以分大小写输入，通过1602液晶将字符显示出来-SCM and PS2 keyboard connected applications, can be divided into upper and lower case input, through the 1602 LCD will be displayed characters
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002116s ]
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:0.091258s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002216s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002159s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002196s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003669s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002032s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003368s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015397s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002441s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 177364 [ RunTime:0.001048s ]
