本文介绍了如何删除XML中的节点的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! 如何删除此xml文件中的每个course_code?! < course xmlns:xsi = http://www.w3.org/2001/XMLSchema-instance xmlns:xsd = http://www.w3.org/2001/XMLSchema > < course_code > 30 < ; / course_code > < totalnum > 20 < / totalnum > < 名称 > asd < / name > < coursecat > 工程< / coursecat > < / course > < 课程 xmlns:xsi = http://www.w3.org/2001/XMLSchema-instance xmlns:xsd = http://www.w3.org/2001/XMLSchema > < course_code > 20 < / course_code > < totalnum > 30 < / totalnum > < name > hh < / name > < coursecat > 艺术< / coursecat > < / course > < 课程 xmlns:xsi = http://www.w3.org/2001/XMLSchema-instance xmlns:xsd = http:// www .w3.org / 2001 / XMLSchema > < course_code > 12 < / course_code > < totalnum > 20 < / totalnum > < name > dd < / name > < coursecat > 艺术< / coursecat > < / course > < 讲师 xmlns:xsi = http://www.w3.org/2001/ XMLSchema-instance xmlns:xsd = http://www.w3.org/2001/XMLSchema > < instructor_id > 30 < / instructor_id > < name > omar < / name > < phone_num > 010 < / phone_num > < 地址 > alex < / address > < 电子邮件 > moas @ yahoo < / email > < course_id2 > 12 < / course_id2 > < / instructor > 我尝试过: XML移到问题部分并添加了代码块 - OriginalGriff] [/ edit] 解决方案 没有这样的东西,并不是真的需要它。 .NET FCL提供的所有与XML相关的类型都遵循不同的原则:您必须立即编写整个XML。例如,您可以删除XML DOM模型中的节点,但仍需编写完整的XML。如果您考虑一下,您会明白这是一个可行的决定。 这是我对可用XML类的简短概述: 使用 System.Xml.XmlDocument 类。它实现了DOM接口;如果文档的大小不是太大,这种方式是最简单和最好的。参见 http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx 。 使用类 System.Xml .XmlTextWriter 和 System.Xml.XmlTextReader ;这是最快的阅读方式,特别是你需要跳过一些数据。参见 http://msdn.microsoft.com/en-us/library/system.xml.xmlwriter.aspx , http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx 。 使用类 System.Xml.Linq.XDocument ;这是类似于 XmlDocument 的最合适的方式,支持LINQ to XML Programming。参见 http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx ,http://msdn.microsoft.com/en-us/library/bb387063.aspx 。 -SA how to delete every course_code in this xml file ?!<course xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <course_code>30</course_code> <totalnum>20</totalnum> <name>asd</name> <coursecat>Engineering</coursecat></course><course xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <course_code>20</course_code> <totalnum>30</totalnum> <name>hh</name> <coursecat>Art</coursecat></course><course xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <course_code>12</course_code> <totalnum>20</totalnum> <name>dd</name> <coursecat>Art</coursecat></course><instructor xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <instructor_id>30</instructor_id> <name>omar</name> <phone_num>010</phone_num> <address>alex</address> <email>moas@yahoo</email> <course_id2>12</course_id2></instructor>What I have tried:[edit]XML moved to question section and code block added - OriginalGriff][/edit] 解决方案 There is no such thing, and it's not really needed. All the XML-related types offered by .NET FCL work on different principles: you have to write the whole XML at once. You can, say, delete a node in the XML DOM Model, but you still have to write whole XML. If you think about it, you will understand that this is a viable decision.This is my short overview of available XML classes:Use System.Xml.XmlDocument class. It implements DOM interface; this way is the easiest and good enough if the size if the document is not too big.See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx.Use the classes System.Xml.XmlTextWriter and System.Xml.XmlTextReader; this is the fastest way of reading, especially is you need to skip some data.See http://msdn.microsoft.com/en-us/library/system.xml.xmlwriter.aspx, http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx.Use the class System.Xml.Linq.XDocument; this is the most adequate way similar to that of XmlDocument, supporting LINQ to XML Programming.See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx, http://msdn.microsoft.com/en-us/library/bb387063.aspx.—SA 这篇关于如何删除XML中的节点的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云! 08-20 12:12