[]xml的解析，大家帮小弟我看看下面这段代码

#include <QtCore/QCoreApplication>#include <QtCore/QFile>#include <QtCore/QXmlStreamReader>#include <QtCore/QDebug>int main(int argc, char *argv[]){    QCoreApplication a(argc, argv);    QString firstName="";    QString lastName="";    QString filePath = "D://Share//Qt//xmlreader//xmlreader//xmlreader.xml";    QFile xmlFile(filePath);    qDebug()<<xmlFile.open(QIODevice::ReadOnly);    QXmlStreamReader xmlReader(xmlFile.readAll());    xmlReader.readNext();    qDebug()<<xmlReader.name();    xmlReader.readNext();    qDebug()<<xmlReader.name();    while(!xmlReader.atEnd())    {        if(xmlReader.isStartElement())        {            if(xmlReader.name()=="firstName")            {                qDebug()<<xmlReader.name();                firstName+=xmlReader.readElementText();            }            if(xmlReader.name()=="lastName")            {                qDebug()<<xmlReader.name();                lastName+=xmlReader.readElementText();            }        }        else if(xmlReader.isEndElement())        {            qDebug()<<QString("%1%2").arg("/").arg(xmlReader.name().toString());            xmlReader.readNext();        }        xmlReader.readNext();    }    qDebug()<<QString("%1 %2").arg(firstName).arg(lastName);}

<?xml version="1.0" encoding="UTF-8"?><fullName>    <firstName>first</firstName>    <lastName>last</lastName></fullName>

QXmlStreamReader xml(xmlFile.readAll());        while (!xml.atEnd())        {            xml.readNext();            if(xml.error())            {                qDebug()<<"error:";                qDebug()<<xml.errorString();            }            if (xml.tokenType() == QXmlStreamReader::StartElement)            {                qDebug()<<"start:";                qDebug()<<xml.name();            }            if (xml.tokenType() == QXmlStreamReader::EndElement)            {                qDebug()<<"end:";                qDebug()<<xml.name();            }        }