1         QDir dir(path);
 2         QStringList filter;
 3         filter<<"*.bmp"<<"*.jpg"<<"*.png";
 4         infolist = dir.entryInfoList(filter);
 5 
 6         if(infolist.isEmpty())
 7         {
 8             infolist.clear();
 9             QMessageBox::information(this, "提示", "没有合适的图片文件!");
10             return;
11         }