vc++图像处理程序，可以方便256色转灰度图，适合初学者做图像处理入门测试用
-vc++ image processing procedures, can easily switch to 256 color grayscale, suitable for beginners to do image processing entry test
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001895s ]
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:0.087475s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.008576s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002489s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002266s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003672s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001979s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003251s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014907s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002366s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 57330 [ RunTime:0.001067s ]
