XPath中的CSS选择器 [英] CSS selector inside XPath

问题描述

是否可以在XPath中指定CSS选择器?本质上，我想找到同时满足.myClass div和div[contains(., 'Hello!')]的元素.

Is it possible to specify a CSS selector inside an XPath? Essentially, I want to find elements that satisfy both .myClass div and div[contains(., 'Hello!')].

推荐答案

不，您不能将CSS选择器语法和XPath语法组合到单个表达式中.两种语言都没有任何功能可以让您从另一种语言中获取表达式.

No, you can't combine CSS selector syntax and XPath syntax into a single expression. Neither language has any feature that lets you feed an expression from the other.

您只能将CSS选择器作为XPath 并入XPath中，这意味着您需要自己对其进行翻译.在您的情况下，这是生成的XPath表达式:

You can only incorporate the CSS selector into the XPath as XPath, which means you'll need to translate it yourself. In your case, here's the resultant XPath expression:

//*[contains(concat(' ', @class, ' '), ' myClass ')]//div[contains(., 'Hello!')]

当然，这取决于您可以使用CSS选择器或XPath完成什么.例如，如果如果未从CSS3中删除:contains()伪类，则您将能够使用这个CSS选择器也是如此:

Of course, this depends on what you can accomplish with CSS selectors or XPath. For example, if the :contains() pseudo-class hadn't been dropped from CSS3, you would have been able to use this CSS selector just as well:

.myClass div:contains('Hello!')

但是它已从规范中删除，因此您只能使其用作jQuery选择器或Selenium CSS定位器.

But it's been removed from the spec, so you'll only be able to get it to work as a jQuery selector or a Selenium CSS locator.

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