xml 的修改

bool XmlStream::modiXml(constQString&fileName)

{

   QFilefile(fileName);

   if(!file.open(QFile::ReadOnly|QFile::Text))

{

     std::cerr<<"Error:Cannotreadfile"

     returnfalse;
}

QStringerrorStr;

interrorLine;

interrorColumn;

QDomDocumentdoc;

   if(!doc.setContent(&file,false,&errorStr,

 &errorLine,&errorColumn))

{

   std::cerr<<"Error:Parseerroratline"
   <<errorLine<<","
   <<"column"<<errorColumn<<":"
   <<qPrintable(errorStr)<<std::endl
   return false;
}
file.close();
QDomElementroot=doc.documentElement();
QDomNodechild=root.firstChild();
while(!child.isNull())
{
   if(child.toElement().tagName()=="name")
   {
     QDomElementel=child.toElement();
     QDomNodeoldnode=el.firstChild();
     el.firstChild().setNodeValue(xmlScenario->getScenarioName());
     QDomNodenewnode=el.firstChild();
     el.replaceChild(newnode,oldnode);
    std::cerr<<qPrintable(el.tagName())<<std::endl;
    std::cerr<<qPrintable(el.text())<<std::endl;
   child=child.nextSibling()；
}

else
{
   child=child.nextSibling();}
}
QFilef(fileName);
if(!f.open(QFile::WriteOnly|QFile::Text))
{
 std::cerr<<"Error:Cannotreadfile"
 <<qPrintable(fileName)
 <<":"<<qPrintable(f.errorString())
 <<std::endl;
 return false;
}
QTextStreamout(&f);
root.save(out,4);
return  true;

}