集成CAN总线的单片机连接图，包括ad转换，电源处理，通过232与主机的通讯--An SCM connection graph of integrated CAN bus, including ad conversion , power treatment and the communication with main machine by 232.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002000s ]
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:0.091122s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001230s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001883s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001201s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003559s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001044s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015037s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001361s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 121117 [ RunTime:0.001241s ]
