VHDL数字系统设计和工程实践3，包含原理，真值表和原理图，以及VHDL源代码.-VHDL digital system design and engineering practice, 3, including the principles, truth table and schematic, as well as VHDL source code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001238s ]
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:0.086660s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001273s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001883s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001190s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003557s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001025s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003152s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014625s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001296s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 173483 [ RunTime:0.001342s ]
