QT读写XML

发布时间：2020-12-16 09:34:16 所属栏目：百科来源：网络整理

导读：test.xml Xml代码 ? xml version = "1.0" encoding = "UTF-8" ? Start animinal = "cat" book book1 / Start simpleWriter.cpp C++代码 #includeQXmlStreamWriter #includeQFile #includeiostream using namespace std; void writeXML(){ QFilefile( "test.x

test.xml

    Xml代码 
    
  
 <?xmlversion="1.0"encoding="UTF-8"?>
<Startaniminal="cat">
book>book1</Start>

simpleWriter.cpp

C++代码

#include<QXmlStreamWriter>

#include<QFile>
#include<iostream>
usingnamespacestd;
voidwriteXML(){
QFilefile("test.xml");
if(notfile.open(QIODevice::ReadWrite))
return;
QXmlStreamWriterwriter(&file);
writer.setAutoFormatting(true);
writer.writeStartDocument();
writer.writeStartElement("Start");
writer.writeAttribute("animinal","cat");
writer.writeTextElement("book","book1");
writer.writeEndElement();//Start
writer.writeEndDocument();
file.close();
}
intmain(){
writeXML();
}

dom读写
dom.xml
dom.cpp
#include<QDomDocument>

#include<QDomElement>

#include<QTextStream>

voidwriteDom(){

QFilefile("dom.xml");

QDomDocumentdoc;

QDomElementstartElem=doc.createElement("Start");

doc.appendChild(startElem);

startElem.setAttribute("animinal",250); line-height:18px"> QDomElementbookElem=doc.createElement("book");

bookElem.appendChild(doc.createTextNode("book1"));

startElem.appendChild(bookElem);

QTextStreamout(&file);

doc.save(out,3);

voidreadDom(){

doc.setContent(&file);

QDomElementstartElem=doc.documentElement();

cout<<"animainal:";

cout<<startElem.attribute("animinal").toStdString()<<endl;

cout<<"book:";

cout<<startElem.firstChildElement("book").text().toStdString()<<endl;

intmain()

{

writeDom();

readDom();

animainal:cat

book:book1

（编辑：李大同）

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