按频率抽取计算FFT的C++源代码，可以较方便地移植到有C/C++开发环境的DSP中去-by FFT frequency calculated from the C source code, can be easily ported to the C/C development environment to the DSP
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002273s ]
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:0.136913s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001865s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002372s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001590s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006262s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001337s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007921s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021575s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001594s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 90890 [ RunTime:0.019535s ]
