相关器可以主要对不同的信号做相关检测，可以用于信号的提取，以及时间延迟的计算-Correlator can be mainly related to do different signal detection, can be used for signal extraction, as well as the time delay calculation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002139s ]
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:0.093532s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002586s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002970s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002347s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003651s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001931s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003295s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016421s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002401s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 189801 [ RunTime:0.001014s ]
