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XPath扩展数据提取(网页抓取),Web自动化和爬行。

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IMPORTANT: NEWER VERSIONS OF OXPATH WILL BE AVAILABLE [HERE](http://www.oxpath.org/download/) OXPath extends XPath for web data extraction, adding: Actions, allowing the simulation of user actions (e.g., click, form filling) to interact with the scripted multi-page interfaces of web applications. Extraction Markers, a new kind of qualifier, to identify nodes as representative for records and to form attributes from extracted data. Style Axis and Visible Field, allow node and form field selection based on visual features by exposing all CSS properties via a new axis called style. Intensional Axes, to relate nodes through multiple conditions, e.g., to select all nodes which are at the same vertical position and have the same color as the current node, which is not expressible in XPath. OXPath runs i

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