用硬件VHDL语言实现的串口通信的试验代码，可用来代替单片机的工作对串口进行测试。-VHDL language used hardware realize the serial communication of test code that can be used to replace the work of single-chip serial port for testing.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001367s ]
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:0.090557s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001293s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001908s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001242s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003578s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001067s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003195s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014679s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001384s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 194922 [ RunTime:0.001524s ]
