本程序主要实现了离散时间的傅立叶变换，具有很强的可移值性，原理简单。-This procedure has been the main achievement of the discrete-time Fourier transform, has a strong value can be changed, and simple.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001684s ]
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:0.074044s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001175s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001242s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000960s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003073s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000818s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003792s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014620s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001331s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 313067 [ RunTime:0.017040s ]
