串口数据采集后用VB显示成波形图

用vb来显示工业控制过程中的数据点的采集，并且绘制出波形-Industrial Control using vb to show the process of collecting data points and draw out the waveform

用VB生成任意频率的波形和相应的WAV文件（默认保存在C:TEST.WAV）可以做信号发声之用-Using VB to generate arbitrary waveforms and frequencies corresponding WAV files (by default stored in C: TEST.WAV) signal audible purposes can be done