基于usb7646B采集卡的3路ad采集波形显示，两路为电压采集（量程150V、300V），一路为电流采集（量程120A），采集速率10K-400K，程序内部波形显示，采集结束自动保存表格到根目录-Based on usb7646B acquisition card 3-way ad acquisition waveform display, the two voltage acquisition (range 150V, 300V), all the way to the current acquisition (range 120A), acquisition rate 10K-400K, the program internal waveform display, automatically save the table to save the form to Root directory