按语不是书目的必备成份,因此不大受重视。其实书目编撰者往往通过按语来表达自己对某类书或某部书的看法。按语对我们认识图书、认识书目与书目的编撰者是大有帮助的,下面我们就以《文献通考·经籍考》为例,研究一下按语的内容、特点与作用。 It is not an essential part of the bibliography, so it is less valued. In fact, the bibliographic compilers tend to express their views on a certain type of book or a certain book by way of speaking. It is helpful for us to know the book in a few words and to know the bibliography and the bibliography of the bibliography. In the following, we will take the example of “Tongtiao · Jingjiuguan” as an example to study the content, characteristics and functions of the poem.