CRC码产生器与校验器程序
Features ：
Executes in one clock cycle per data word
Any polynomial from 4 to 32 bits
Any data width from 1 to 256 bits
Any initialization value
Synchronous or asynchronous reset
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001061s ]
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:0.062649s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001479s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002225s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001660s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006215s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000980s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003891s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014784s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001231s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 406187 [ RunTime:0.019662s ]
