本源程序实现通过4*4键盘输入数据，在液晶上实时显示。并实现和PC间的信息交换-Realize the source code through the 4* 4 keyboard input data, in real-time display on the LCD. And the realization and the exchange of information between PC
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001268s ]
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:0.086197s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001224s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001903s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003625s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001003s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003201s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015097s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001379s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 122373 [ RunTime:0.001420s ]
