Qt生成XML文件

QString filename = QFileDialog::getSaveFileName( this, "Save", "", "*.xml" );  
  
QFile file( filename );  
if( !file.open(QIODevice::WriteOnly | QIODevice::Text) )  
{  
    return;  
}  
  
QDomDocument document;  
  
QString strHeader( "version=\"1.0\" encoding=\"UTF-8\"" );  
document.appendChild( document.createProcessingInstruction("xml", strHeader) );  
  
QDomElement root_elem = document.createElement( "items" );  
root_elem.setAttribute( "id", 1 );  
document.appendChild( root_elem );  
  
QDomElement item1 = document.createElement( "item" );  
item1.setAttribute( "src", "<>" );  
item1.setAttribute( "dst", "<>" );  
root_elem.appendChild( item1 );  
  
QDomElement item2 = document.createElement( "item" );  
item2.setAttribute( "src", ""'&" );  
item2.setAttribute( "dst", "\"'&" );  
root_elem.appendChild( item2 );  
  
QDomElement item3 = document.createElement( "item" );  
item3.setAttribute( "src", tr("测试数据") );  
item3.setAttribute( "dst", tr("一二三四") );  
root_elem.appendChild( item3 );  
  
QTextStream out( &file );  
document.save( out, 4 );  
file.close();