灰度扩展及灰度图像伪彩色化：灰度值在0～20之间显蓝色，20～40之间显绿色，40～255显红色。
-Gray-scale images of pseudo-color: gray-scale value between 0 to 20 Hin blue, between 20 to 40 green, 40 ~ 255 marked in red.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000914s ]
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:0.090958s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001410s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001928s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001456s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005295s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001290s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007022s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.028032s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001457s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 306289 [ RunTime:0.013822s ]
