CDOI,the unique identifier of digital object in China,has not been widely used for its ongoing development and the popularity of early DOI systems.This article introduces the general situation of DOI,Chines DOI and CDOI,analyzes the syntax of CDOI in detail,and discusses the naming rules of CDOI prefix,extension of suffix and the feasibility of applying two-dimen-sional code.%CDOI是我国数字对象唯一标识符系统,由于其尚在发展之中,并未在国内广泛使用.文章介绍了DOI、中文DOI及CDOI的概况,详细分析了CDOI的语法,并对CDOI前缀的命名规则、后缀的扩展以及应用二维码的可行性进行了讨论研究.
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