利用条形码扫描器销售商品，VB利用条形码扫描器销售商品，以一个图书销售为例，利用条形码扫描器直接查询出对应商品，这种应用现在被广泛应用于超市、品牌销售店等众多地方-The use of bar code scanners sale of goods, VB use barcode scanner sales of goods to a book sales, for example, the use of barcode scanners directly query the corresponding goods, such applications are now widely used in many local supermarkets, stores and other brand sales