分类法和主题法是图书情报单位广泛使用的两种主要检索方法。它们既有相共性,又有各异的特征。这种特征的差异形成了各自的特点,显示出二者互有长短、各有千秋。 Taxonomies and thematic methods are the two main retrieval methods widely used by LIS. They have both commonality and different characteristics. The differences in these characteristics have formed their own characteristics, showing the length of each other, each has its advantages and disadvantages.