主要功能是检测图像中，由于灰度变化产生的边缘，效果还行，主要用的是sobel算子-Main function is to detect images, because gray-scale changes in the edge line effects, mainly using a sobel operator
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001315s ]
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:0.085614s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001180s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002403s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001153s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003658s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000985s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003422s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014959s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001362s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 251893 [ RunTime:0.002158s ]
