如何从条形码扫描仪获取有效期？

Question

我是这个领域的新手。我已经实施了条形码扫描仪。我已经知道了条形码的正确值和条形码类型。现在有什么方法可以使用该值来查找到期日。请帮助我，我不知道关于它。谢谢提前...。

Answer 1

The value of the barcode is normally just a number, it depends on what this number references.

For most products available commercially it is either EAN 8 or EAN 13. To see the breakdown of what an EAN number represents have a look at the following link

http://www.codeproject.com/KB/miscctrl/BarCodeAX.aspx?msg=2580704

Unless the barcode that you are scanning specifically has the expiry date contained in it you will need to load the related information from somewhere else