应用VC实现离散付立叶级数的模拟，通过收集离散数据点，应用离散付立叶级数的原理和公式很好地模拟了已知数据，并求取了相应的付立叶系数。-VC Application of discrete Fourier series to achieve the simulation, through the collection of discrete data points, the application of discrete Fourier series of principles and formu