Using Rails 5, Ruby 2.4. If I have located a node using Nokogiri parsing, how would I find all the nodes that occur before my found node that do not also include that found node? That is, let's say my document isUsing Rails 5, Ruby 2.4. If I have located a no
阅读背景：
在Nokogiri中，如何找到文档中某个节点之前的所有节点？
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