QT学习之路 - 走反样（26）

工程代码： 24.rar  
http://devbean.blog.51cto.com/448512/237447

void PaintedWidget::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    painter.setPen(QPen(Qt::black,5,Qt::DashDotLine,Qt::RoundCap));
    painter.setBrush(Qt::yellow);
    painter.drawEllipse(50,150,200,150);

    painter.setRenderHint(QPainter::Antialiasing,true);//走反样功能
    painter.setPen(QPen(Qt::black,5,Qt::DashDotLine,Qt::RoundCap));
    painter.setBrush(Qt::yellow);
    painter.drawEllipse(300,150,200,150);
}