不同节点的 XPath OR 运算符 [英] XPath OR operator for different nodes

问题描述

我如何使用 XPath:

How can I do with XPath:

//bookstore/book/title or //bookstore/city/zipcode/title

只是 //title 不起作用，因为我还有 //bookstore/magazine/title

Just //title won't work because I also have //bookstore/magazine/title

附言我看到了很多或示例，但主要是属性或单节点结构.

p.s. I saw a lot of or examples but mainly with attributes or single node structure.

推荐答案

所有 title 节点以 zipcode 或 book 节点为父节点:

All title nodes with zipcode or book node as parent:

版本 1:

//title[parent::zipcode|parent::book]

版本 2:

//bookstore/book/title|//bookstore/city/zipcode/title

第 3 版:(结果根据源数据排序，而不是书本和邮政编码的顺序)

Version 3: (results are sorted based on source data rather than the order of book then zipcode)

//title[../../../*[book or magazine] or ../../../../*[city/zipcode]]

or - 在 true/false 中使用 - xpath 中的布尔运算符

or - used within true/false - a Boolean operator in xpath

| - xpath 中的联合运算符将运算符右侧的查询附加到左侧查询的结果集.

| - a Union operator in xpath that appends the query to the right of the operator to the result set from the left query.

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