一个VB写的UDP协议的C/S模式的服务程序-a VB UDP written in C / S mode service procedures

此为刷卡器充值上位机软件，包括COM口检测各种无效卡显示，及其VB界面的各种设置。及其数据库的设置。麻雀虽小五脏俱全，对于学习VB的新手来说会很有帮助,This is the credit card recharge PC browser software, including COM port detected a variety of invalid card show, and the VB interface, various settings. And database setting

一个基于C/S模式，VB开发环境的图书馆数据库系统-A Based on C/S mode, VB development environment, the library database system

一个基于C/S模式，VB开发的酒店数据库系统-A Based on C/S mode, VB database system developed by hotel