MSComm32.ocx串口通信程序。测试时不要用虚拟串口，直接将串口2引脚与3引脚短接。-MSComm32.ocx serial communication program. Not to test with virtual serial port, serial port directly to 2-pin and 3 pin shorted.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001265s ]
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:0.090425s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001209s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001882s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001194s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003667s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001048s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003257s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015027s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002804s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 134844 [ RunTime:0.001551s ]
