xpath 按索引获取元素 [英] xpath get element by index

问题描述

我有以下 xpath 表达式

I have the below xpath expression

//div[@class="post-content"]//img

在 html 页面上运行，扫描图像.上面的查询返回了很多图像，但我只想要列表中的第二个.

which runs on a html page, scanning for images. The above query returns a lot of images but I only want the second in the list.

我尝试过这些，但没有运气:

I have tried these with no luck:

//div[@class="post-content"]//img[1] and
//div[@class="post-content"]//img[position()=1]

推荐答案

在 XPath 中索引从 1 个位置开始，因此

In XPath index starts from 1 position, therefore

//div[@class="post-content"]//img[2]

如果您必须在 div[@class="post-content"] 中选择每个第二个 img，

应该可以正常工作.如果您必须从 div[@class="post-content"] 中的所有图像中仅选择第二个 img，请使用:

should work correctly if you have to select each 2nd img in div[@class="post-content"]. If you have to select only 2nd img from all images that are in div[@class="post-content"], use:

(//div[@class="post-content"]//img)[2]

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