形态学图像边缘检测运算。结构元素为水平方向或垂直方向的三个点，中间点位于原点-morphological image edge detection operators. Structural elements of the vertical or horizontal direction of the three points at the mid-point of origin
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001248s ]
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:0.089954s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001243s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002275s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001225s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003694s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001070s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003309s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014933s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001365s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 318982 [ RunTime:0.001193s ]
