利用并口控制IO，VB写的程序，很适用，需要的朋友可以下载,Parallel port to control the use of IO, VB written procedures, it is applicable, a friend in need can be downloaded

vb做的并口热敏打印机程序,主要是简单方便，不用买昂贵的打印机了-vb do parallel port thermal printer program mainly simple and convenient, do not have to buy expensive printer