能进行8*8的快速DCT变换并反变换，显示变换前和变换后的图象。可自由选择保留几个DCT变换后的系数-Can be 8* 8 Fast DCT transform and inverse transform, showing transformation before and after the image transformation. Be free to choose to retain a few DCT transformed coefficients
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001351s ]
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:0.094264s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001218s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002121s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001354s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003818s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001095s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003326s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015306s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001418s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 268032 [ RunTime:0.001447s ]
