EDA设计实验，用VHDL编写的数字时钟代码，能显示分，秒，小时。根据所设置的频率不同，能够调整时间快慢。-EDA design of experiments, prepared by VHDL code digital clock showing the hours, seconds, hours. According to the frequency of different settings, time to adjust speed.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001109s ]
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:0.075869s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001007s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001275s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000988s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002996s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000841s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003663s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024474s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.000988s ]
UPDATE `jrk_articles` SET `hits` = 3 WHERE `id` = 209862 [ RunTime:0.016416s ]
