本程序是在PIC单片机上实现的CAN通信协议，使用的是C语言编程，具有详细的注释。-This procedure is implemented on PIC Singlechip CAN communication protocol, using a C language programming, with detailed notes.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001260s ]
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:0.086358s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001183s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001916s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001179s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003531s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000979s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003219s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014668s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001299s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 176965 [ RunTime:0.001576s ]
