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:0.001208s ]
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:0.076771s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000742s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001177s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001232s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003110s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000772s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003731s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020607s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.000982s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 251893 [ RunTime:0.011649s ]
