wavecontrol基于wavefile类，我在另一篇文章中写道。该用户控件使用这类分析的波形文件，并控制本身处理所有图纸/缩放波形。-WaveControl is based on the WaveFile class that I wrote in another article. This user control uses that class for parsing of the wave file, and the control itself handles all the drawing/zooming of the waveform.