种子填充法：
1、原理：将区域内的一点(种子)赋予给定的颜色，然后将这种颜色扩展到整个区域内
-Seed filling: 1, Principle: The region that (seeds) to give a given color, the color and then extended to the entire region
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.023866s ]
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:0.110769s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.006676s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001239s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000967s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004796s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001562s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005667s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.026875s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001818s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 176490 [ RunTime:0.059834s ]
