基于AT89C51的宾馆IC卡门锁发卡系统 包括上位机和下位机 下位机采用VB下位机为汇编语言编程-on AT89C51 Hotels IC card lock system includes PC and the next crew under-used machines V under B crew of assembly language programming

进度条的例子，由VB编译实现。很有用的一个例子，进度条在工程中到处可见，代码的复用率高。-The progress bar codes, it is very useful for development of a feature, and it can be used in coding directly.