介绍了Linux下的串口驱动的设计层次及接口, 并指出串口与TTY终端之间的关联层次(串口可作TTY终端使用)-Describes the serial port under Linux-driven design and interface level, and noted that the serial link between the terminal and the TTY level (TTY serial port can be used for end-use)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000944s ]
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:0.074747s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.022222s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.007836s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.012905s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004929s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.007678s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.015118s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015439s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002389s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 168427 [ RunTime:0.022718s ]
