QIcon icon;
QPixmap pix;
pix.load("image/mouse.png");
icon.addPixmap(pix);
ui->Magnifer->setIcon(icon);
ui->Magnifer->setIconSize(QSize(51,56));
ui->Magnifer->show();
在网上有人添加了这么两句话ui->Magnifer->setFixedSize(pix.size());ui->Magnifer->setMask(pix.mask());纯他妈扯淡,这样图片救不能在按钮中显示出来了