标题:C++ Qt中setBrush我只发现了一种实现方式，为何以下语句中有两种？
作者:ceiwei
日期:2017-02-10 14:52
内容:
painter.setBrush(QBrush(Qt::blue,Qt::Dense3Pattern))
painter.setBrush(Qt::blue)
Qt帮助文档是这样的：
void QPainter::setBrush(const QBrush &brush)
Sets the painter's brush to the given brush.
The painter's brush defines how shapes are filled.
See also brush() and Settings.
void QPainter::setBrush(Qt::BrushStyle style)
This is an overloaded function.
Sets the painter's brush to black color and the specified style.
#1 [steinlee 02-10 17:16]
一样的。第二个是有default settings.第一个你可以设置你喜欢的