vb开发的通过串口与计数秤进行通信的程序，可以自动采集和手动采集数据，也可向下发命令控制计数秤-vb development of scale through the serial port to communicate with the counting procedures can be automatically collected and manually collected data can also be counting down command-control-fat scale

VB串口通信上位机, use com connect.-VB com connect