利用VB进行神经网络预测，可以进行路基沉降及路面工程预测。-With ANN coded by VB, the condition of base sedimentation and road engineering can be predicted.

采用vb语音编写时域抽取法的基2快速傅里叶变换，并以N=8为例验证了程序的正确性-Written in the time domain using vb speech extraction method of the base 2 Fast Fourier Transform, and N = 8 as an example to verify the correctness of the program