xml - XPath count() function

Question

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Suppose I have an XML tree as below:

proceedings
   -name
   -contents
      -article
         -author
         -title
         -pages

How can I identify any title that has only one author? And the number of articles that have more than three author using XPath?

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1 Answer

深蓝 · Answer 1 · 2021-10-23T19:16:26+0000

Title with one author:

/proceedings/contents/article[count(author)=1]/title

Number of articles with more than three authors:

count(/proceedings/contents/article[count(author)>3])