vb与三菱plc 通讯程序，基础知识，未曾清贫难成人，不经打击老天真，从来英雄出炼狱，自古富贵入凡尘，醉生梦死谁成器，托马长枪定乾坤。(VB (Visual Basic) is Microsoft Corporation promotes based on the Basic language visualization programming environment, but by its simple easy to study, the function formidable time