XPATH 选择根元素 [英] XPATH selecting the root element

问题描述

是否有一种简单的方法可以在任何给定的上下文中移回根节点.我正在处理的 XML 文档非常大，需要使用 ../.. 大约十几次！！

Is there a simple way of moving back to the root node within any given context. The XML document I'm working with is extremely large and would require using ../.. about a dozen times!!

非常感谢大家的帮助.

推荐答案

我猜你在这里是谓词?并想返回以查看树更高层的数据以适应您的情况?

I'm guessing you are in a predicate here? and want to return to look at data higher up the tree for your condition?

您应该能够从前导/开始，然后再往下工作例如

You should be able to start with a leading / and then work your way back down e.g

/vehicles/cars/car[@id = /vehicles/featuredVehicle/@id]

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