频率计介绍了用VHDL语言编写的频率计的程序,详细编写了如何测频,如何计数频率。-Cymometer introduce VHDL language with the frequency of the procedure in detail how to prepare a frequency measurement, how to count the frequency.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001254s ]
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:0.073789s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001513s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001876s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001310s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004146s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000858s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003477s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014465s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001058s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 108890 [ RunTime:0.012756s ]