使用8251进行串行通信，在主机键盘打入的字符可以显示在终端屏幕上，在终端屏幕上打入的字符显示在主机屏幕上。-8251 for the use of serial communication, the host of characters into the keyboard can display on the terminal screen, enter the terminal screen character display mainframe screens.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001482s ]
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:0.093609s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001223s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001899s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001286s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003576s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001133s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003218s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018242s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001578s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 283928 [ RunTime:0.001724s ]
