条形码打印程序，有各种条形码的识别与打印功能，用vb做的小程序-Bar code printing process, there are a variety of bar code identification and printing capabilities, using a small vb program to do

用VB 6.0 + Access + 自定义封装的打印类实现的某货场管理应用 -With VB 6.0+ Access+ custom printed packaging to achieve a certain class of freight yard management applications