该程序可以算出未经编码和编码后的误码率，从而很清楚的表现纠错编码后系统的改善．-the program can be calculated without coding and the coding error rate, the performance is very clear after the error-correcting coding system improvements.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001451s ]
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:0.082108s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000966s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001264s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001070s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003090s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000787s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003703s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015347s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.004095s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 322563 [ RunTime:0.249161s ]
