实时程序，对于初学者可以看看 数字I/O的使用 定时器的使用 中断 与PC机进行RS232通信-real-time process for beginners can look at digital I/O using the timer interruption of use for PC and RS232 communication
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002194s ]
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:0.086888s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002352s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002206s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003624s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.006686s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015093s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002488s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 110872 [ RunTime:0.001274s ]
