标记号码是图书分类法的重要组成部分,对它的研究和分析是图书分类学的一个重要方面。这里,我对其中两个问题谈谈自己的看法。一、标记号码的两重性:金链和桎梏图书分类法的标记号码具有两重性。从好的一点来看,“它一方面能表示类目在分类体系中的位置,以便组织和使用目录;另一方面能表示书籍在书架上排列的次序,以便出纳和参考”。通过它,把分 Tag number is an important part of book classification, and its research and analysis is an important aspect of book taxonomy. Here, I talk about one of two questions about my own opinion. First, the duality of the mark number: gold chain and 梏 梏 book taxonomy number has a duality. On the bright side, “it can, on the one hand, indicate the position of categories in the classification system in order to organize and use catalogs; on the other hand, it can indicate the order in which books are arranged on shelves for cashier’s and reference purposes.” Through it, put the points