针对matlab中快速傅立叶变换，我们用C++语言来实现同样的功能。排序的方法用的蝶形算法，也是快速算法。FFT的c++代码实现，效率比MATLAB的要高一点，并且已经调试通过。-FFT of c++ code to achieve efficiency is higher than that of MATLAB, and has passed testing.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001425s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001298s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001140s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001475s ]
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