摘要
从上期开始，本栏目以连载的形式向读者介绍自动识别技术相关的基础知识。在上期文章中，我们重点了解条码技术的研究对象以及EAN·UCC系统的物品编码体系。本期内容目标——介绍一维条码的编码方法及常见的一维条码，介绍二维条码的有关知识。
From the beginning of former issue,the column introducessome relevant knowledge for readers by the serialized way.In the former article,we know what EAN UCC system means.In this issue,we will continue to introduce some knowledgeon automatic identification,laying stress on linear bar codeand 2-dimensional bar code.
