卡油裡

//QLabel
QLabel label_network;
label_network->setTextFormat(Qt::RichText);
label_network->setText("<\img src=":/myimage.png"\>Hello!");
//change icon by setText

//QPushButton
QPushButton item_btn;
item_btn->setStyleSheet("QPushButton {background-color:transparent;} ");
item_btn->setFlat(true);
item_btn->setIconSize(QSize(8, 16));
item_btn->setFixedSize(8, 16);
item_btn->setFocusPolicy(Qt::NoFocus);
item_btn->setGeometry(0, 0,8 ,16);

QPixmap xmp;
xmp.load(":/myimage.png");
item_btn->setIcon(xmp);
//change icon by setIcon