这是一个十分经典的异步收发器的设计，将发送和接受分开，并带有校验位，同时附赠结构图和仿真结构-This is a very classic asynchronous transceiver will be designed to send and receive separately, and with a parity bit, and comes with charts and simulation of the structure
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002102s ]
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:0.084662s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.006164s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002050s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002282s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003691s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002018s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003499s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014787s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002446s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 304885 [ RunTime:0.008902s ]
