vb串口程序，写的是一个串口使用例程，对初学者有用，特别是工控类的-vb serial procedures, to write a serial port using the routines, useful for beginners, especially the industrial category
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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:0.088442s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002766s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002204s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003855s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002038s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002754s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 317377 [ RunTime:0.001121s ]
