QXmlStreamReader/QXmlStreamWriter实现Qt下xml文件读写

最新推荐文章于 2024-01-05 20:15:00 发布

coologic

最新推荐文章于 2024-01-05 20:15:00 发布

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本文链接：https://blog.youkuaiyun.com/coologic/article/details/102968192

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本文介绍了如何使用QXmlStreamReader和QXmlStreamWriter在Qt中进行XML文件的读写操作。讲解了QXml-Token标记类型，提供了一个范例xml文件，并给出了读写xml的详细步骤。强调在读取时要注意完整的包含关系，避免干扰。最后提到了Qt的其他XML处理方法，如SAX和DOM方式。

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介绍

帮助文档：QXmlStreamReader、QXmlStreamWriter

除此以外读取时还需要使用QXmlStreamAttributes

QXml-Token标记类型

Constant	Value	Description
`QXmlStreamReader::NoToken`	`0`	The reader has not yet read anything.
`QXmlStreamReader::Invalid`	`1`	An error has occurred, reported in error() and errorString().
`QXmlStreamReader::StartDocument`	`2`	The reader reports the XML version number in documentVersion(), and the encoding as specified in the XML document in documentEncoding(). If the document is declared standalone, isStandaloneDocument() returns `true`; otherwise it returns `false`.
`QXmlStreamReader::EndDocument`	`3`	The reader reports the end of the document.
`QXmlStreamReader::StartElement`	`4`	The reader reports the start of an element with namespaceUri() and name(). Empty elements are also reported as StartElement, followed directly by EndElement. The convenience function

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