import QtGraphicalEffects1.0需要引入的包
Item{
width: 100
height: 100
Image{
id: imageView
source:"qrc:/icons/noavatar_big.gif";
anchors.fill: parent
smooth: true
visible: false
}
Rectangle{
id: mask
anchors.fill: parent
radius: height/2
}
OpacityMask {
anchors.fill: parent
source: imageView
maskSource: mask
}
}