使用vc++与三菱plc进行通讯，通过通讯协议获取具体的D型的寄存器数据，进行显示，并通过edit改写数据，使用串口通讯将数据更新到寄存器当中-Using vc++ and Mitsubishi plc communication, access to specific data registers D-type through the communication protocol, display, edit and rewrite data by using serial communica