录音,保存为wav文件,绘制波形(vs.net 2003)-Recording, save it as a wav file, rendering waveform (vs.net 2003)

模拟生成波形数据，可以更改幅值，频率，采样频率，并绘制波形曲线-Simulation generates waveform data, you can change the amplitude, frequency, sampling frequency, and draw the waveform curve