dct变换，给出了dct变换的函数，使用时只要把该文件包含即可使用。-dct transformation, has produced the dct transformation
function, when the use so long as contains this document then uses.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001452s ]
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:0.081669s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001063s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001272s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000959s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003222s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001025s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003805s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018748s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001765s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 116100 [ RunTime:0.016987s ]
