QPixmap QImage 相互转化

QPainter p(this);

QPixmap pixmap;

pixmap.load("E:\\参考文件\\image\\1.jpg");

//QPixmap->QImage

QImage tempImage = pixmap.toImage();

p.drawImage(0,0,tempImage);

QImage image;

image.load("E:\\参考文件\\image\\1.jpg");

//QImage->QPixmap

QPixmap tempPixmap = QPixmap::fromImage(image);

p.drawPixmap(450,0,tempPixmap);