One XML file is known as follows: Oberon's Legacy </ Title> <author> Corets, EVA </ author> <price> 5.95 </ price> </ book> </ bookstore> 1, insert a <book> node into the <BookStore> node: xmlDocument Xmldoc = new xmldocument (); xmldoc.load ("bookstore.xml"); xmlnode root = xmldoc.selectsinglenode ("bookstore"); // Find <bookstore> Xmlelement XE1 = XmLDoc.createElement ("book"); // creation A <book> Node Xe1.settribute ("Genre", "Li Zanhong"); // Set this node GENRE attribute XE1.SetAttribute ("ISBN", "2-3631-4"); // Setting this node ISBN property Xmlelement Xesub1 = xmldoc.createElement ("Title"); Xesub1.innertext = "CS From Getting Started to Wen"; // Settings Text Node XE1.AppendChild (Xesub1); // Add to <Book> Node XMLELEMENT XESUB2 = XMLDoc.createElement ("author"); Xesub2.innertext = "Waiting"; Xe1.Appendchild (Xesub2); XMlelement Xesub3 = XmLDoc.createElement ("Price"); XESUB3.INNERTEXT = "58.3"; Xe1.Appendchild (Xesub3); root .Appendchild (xe1); // Add to <BookStore> Node XMLDoc.save ("BookStore.xml"); / / =================== ============================ result is: <? XML Version = "1.0" encoding = "gb2312"> <bookstore> < Book genre = "fantasy" ISBN = "2-3631-4"> <title> Oberon '</p>
<p>S Legacy </ title> <author> Corets, EVA </ author> <price> 5.95 </ price> </ book> <book genre = "Li Zanhong" ISBN = "2-3631-4"> <title> cs from Getting Started to Jingjie </ Title> <Author> Waiting </ Author> <price> 58.3 </ price> </ book> </ bookstore> 2, modify the node: Genre value of the GENRE attribute value is "Li Zanhong" Changed to "Update Li Zanli", modify the text of the child's child's child <author> to "Yak". XmlNodelist NodeList = XmLDoc.selectsinglenode ("BookStore"). ChildNodes; // Get all child nodes for the BookStore node Foreach (XMLNode Xn In nodelist) // Traverse all child nodes {xmlelement XE = (xmlelement) xn; // Fander node Type Convert to XMLELEMENT Type IF (Xe.GetaTRibute ("Genre") == "Li Zanhong") // If the GENRE attribute value is "Li Zanhong" {xe.setttribute ("genre", "Update Li Zan Hong"); // Modify This property is "Update Li Zanli" XMLNodeList NLS = Xe.childNodes; / / Continue all child nodes of the XE child node Foreach (XMLNode XN1 IN NLS) // Traversed {XMLELEMENT XE2 = (XMLELEMENT) XN1; // Conversion Type IF ( XE2.NAME == "Author") // If {xe2.innertext = "Assembly"; // modify break; // can be used to find out.}} Break;}} xmldoc.save ("BookStore. XML "); // Save.</p>
<p>/ / =========================================================================================================================================================================================== == The last result is: <? XML Version = "1.0" encoding = "GB2312"?> <Bookstore> <book genre = "fantasy" ISBN = "2-3631-4"> <title> Oberon's legacy </ title> <Author> Corets, EVA </ author> <price> 5.95 </ price> </ book> <book genre = "Update Li Zanli" ISBN = "2-3631-4"> <title> CS from getting started </ Title> <author> Yaki </ author> <price> 58.3 </ price> </ book> </ bookstore> 3, delete <book genre = "fantasy" ISBN = "2-3631-4"> Node Genre Attribute, delete <book genre = "Update Li Zanli" ISBN = "2-3631-4"> node.</p></div><div class="text-center mt-3 text-grey">
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