用c实现FFT算法，通过修改该程序可实现32点，64点，128点的FFT运算-With c realize FFT algorithm, by modifying the program to achieve 32 points, 64 points, 128 points FFT computation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001964s ]
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:0.087199s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002577s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002010s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002241s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003867s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002115s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003500s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015300s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002724s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 187474 [ RunTime:0.001324s ]
