VHDL语言设计的秒表，实现计时功能，实现报时功能，并且通过硬件实验。-VHDL language design stopwatch, timer function of the realization, the realization of time functions, and through hardware experiments.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.005641s ]
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:0.089389s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002580s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002042s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002307s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003652s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001856s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003473s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015045s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002337s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 166838 [ RunTime:0.001161s ]
