用C51编写的基于51单片机串口点对点双向通信程序，特点是具有可靠的通信失败检测及信息重发功能。-with C51 prepared by the 51 microcontroller-based point-to-point two-way serial communication program, which is characterized with reliable communication failure detection and re-issued the information function.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000868s ]
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:0.073776s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000953s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000937s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003113s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000843s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001035s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 320011 [ RunTime:0.015250s ]
