采用基—2FFT算法对振动信号进行FFT计算，在绘图框绘制出频谱图，本源码已经集成了FFT操作类和绘图类，采用VS2010开发环境开发-Using the base-2FFT FFT algorithm to calculate the vibration signal in the drawing box draw the spectrum, the source has been integrated FFT operation classes and drawing classes, us