QMapIterator遍历QMap

QMap < int , QString > map ;

map [ 1 ]= "First" ; map [ 2 ]= "Second" ; map . insert( 3 , "Third" ); // QMapIterator < int , QString > iMccc ( map ); while ( iMccc . hasNext()) { iMccc . next(); qDebug()<< "key=" << iMccc . key()<< "value=" << iMccc . value(); }