VC++编程，波形显示和FFT算法的实现。非常经典的mfc程序示例，拿来和大家分享一下！-VC++ programming, waveform display and FFT algorithm. Mfc program is the classic example, brought share with you!

vc程序，先输入给定的三角波。然后可进行dft，fft等变换-vc program, the first input to a given triangle wave. Then dft, fft transform