Qt绘制虚线

Qt绘制虚线

QPainter painterObj;
QPen tmp;
QVector<qreal>dashes;
qreal space = 4;
dashes << 3 << space << 3 << space << 3 << space << 3 << space << 3 << space;
tmp.setDashPattern(dashes);
painterObj.setPen(tmp);   

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