def __init__(self):
super().__init__()
self.title = 'Main menu'
self.left = 80
self.top = 80
self.width = 1500
self.height = 1000
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
painter = QPainter(self)
painter.setBrush(Qt.black)
painter.setPen(QPen(Qt.black, 2, Qt.SolidLine))
painter.drawLine(200,200,400,400)
self.show()
我试着画一条直线,但不是什么都画不出来。我怎么画?在
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