C语言实现的fft蝶形运算，是个通用程序，移植一下即可使用在其他嵌入式芯片上-C language implementation of the fft butterfly is a common procedure, transplant what can be used in other embedded chip
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002027s ]
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:0.086048s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002535s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001948s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002331s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003682s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002293s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003232s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015024s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002242s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 147871 [ RunTime:0.001294s ]
