label的透明方法:
[pre]QLabel *label= new QLabel;[/pre]
1.
p, li { white-space: pre-wrap; }[pre]
[/pre]
label.setAttribute(Qt::WA_TranslucentBackground, false);
2.
QPalette pa;
pa.setColor(QPalette::Background, QColor(0x00,0xff,0x00,0x00));
label->setPalette (pa);
都无法实现透明背景