小编mrt*_*tak的帖子

我是Python的新手.我用固定坐标绘制了多边形和圆形.现在我想用鼠标移动这个多边形和圆圈到窗口上的其他位置.请指导我该怎么办？

import sys
from PyQt4.QtGui import *
from PyQt4.QtCore import *

class MyFrame(QWidget):
    def __init__(self, parent=None):
            QWidget.__init__(self)

    def paintEvent(self, event=None):
            paint=QPainter(self)
            paint.setPen(QPen(QColor(Qt.green).dark(150),1,Qt.SolidLine))
            segColor=QColor(Qt.green).dark(150)
            paint.setBrush(segColor)
            paint.setBrushOrigin(QPoint(225,225))
            polygon=QPolygon([QPoint(250,175), QPoint(265,175), QPoint(250,190), QPoint(265,190),QPoint(250,175)])
            paint.drawPolygon(polygon)
            paint.setPen(QPen(QColor(Qt.red),1,Qt.SolidLine))
            paint.setBrush(QBrush(Qt.NoBrush))
            polygon1=QPolygon([QPoint(250,300), QPoint(250,500), QPoint(350,500), QPoint(350,300)])
            paint.drawPolyline(polygon1)
            paint.drawEllipse(50,50,50,50)


app=QApplication(sys.argv)
f=MyFrame()
f.show()
app.exec_()