問題描述
鑒于以下表達式，我如何使用 = 更簡潔明確?
Given the following expression, how can I use = to be more concise and explicit?
(//h2/@id[contains(.,"foo") or contains(.,"bar") or contains(.,"baz"))[last()]
這是我嘗試過的，但我的翻譯說它無效:
Here's what I tried, but my interpreter says it's not valid:
(//h2/@id[text() = ("foo", "bar", "baz")])[last()]
我不能使用 contains() 因為我需要防止子字符串匹配.我正在使用 XPath 1.0，an answer to a related question 是這個問題的動力.
I cannot use contains() because I need to guard against substring matches. I'm using XPath 1.0 and an answer to a related question is the impetus for this question.
推薦答案
在 XPath 2.0 中，
In XPath 2.0,
(//h2[@id = ("foo", "bar", "baz")])[last()]
將選擇文檔中的最后一個 h2 元素，其 id 屬性值為 foo、bar、或 baz.
would select the last h2 element in the document with an id attribute value of foo, bar, or baz.
在 XPath 1.0 中，您將使用顯式布爾 或 運算符:
In XPath 1.0, you'd use explicit boolean or operators:
(//h2[@id="foo" or @id="bar" or @id="baz"])[last()]
這篇關于XPath 具有條件的多個屬性值之一的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！