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2024年4月20日发(作者:免下载游戏网页)

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The lxml library, a Python tool designed for the manipulation of

XML and HTML files, offers a straightforward and robust API for

handling XML and HTML data. The standout feature of lxml is

itsprehensive support for XPath, a potent query language

facilitating the selection of nodes within XML or HTML

documents. Through the utilization of XPath, lxml allows for the

seamless navigation and extraction of data from XML or HTML

files.

lxml库是一个Python工具,旨在操纵XML和HTML文件,它为处

理XML和HTML数据提供了直截了当和强大的API。 lxml的突出特

征是对 XPath 的全面支持,这是一种强大的查询语言,有利于在XML

或HTML文档中选择节点。 通过使用XPath,lxml允许无缝导航和

从XML或HTML文件中提取数据。

In lxml, the term "tree" refers to the way an XML or HTML

document is structured. It's like a family tree that shows the

relationships between different parts of the document. When

you're working with lxml, you can use the tree tools to move

around, change, and grab information from the document. This

includes ways to find elements, attributes, and text, as well as

ways to create and edit the tree itself. If you understand how

the document is structured, you can use lxml to get and change

the data you need.

在lxml中,"tree"一词是指XML或HTML文档的结构方式。 这就像

一棵家庭树,显示文件不同部分之间的关系。 在使用lxml工作时,可

以使用树工具来移动,改变,并从文档中获取信息。 这包括寻找元素、

属性和文本的方法,以及创建和编辑树本身的方法。 如果您了解文档

的结构,您可以使用 lxml 来获取并更改您需要的数据。

XPath is an instrumental query language designed for the

purpose of selecting nodes from an XML or HTML document.

Through the utilization of XPath expressions, one can effectively

specify patterns to match and select nodes based on their

properties and relationships within the document. In the realm

of lxml, the xpath method serves as a tool to apply XPath

expressions to an XML or HTML tree, thereby retrieving

matching nodes. This method of data extraction allows for a

precise and adaptable approach, crucial in the handling of XML

and HTML files within the Python programming language.

XPath是一种工具查询语言,旨在从XML或HTML文档中选择节点。

通过使用XPath表达式,人们可以有效地指定模式,根据它们属性和

文档内的关系来匹配和选择节点。 在lxml领域,xpath方法作为将

XPath表达式应用到XML或HTML树的工具,从而检索匹配的节点。

这种数据提取方法允许一种精确和适应性的方法,对于Python编程

语言中处理XML和HTML文件至关重要。


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