turtleDemo.py 文件源码

def makeGraphFrame(self, root):
        turtle._Screen._root = root
        self.canvwidth = 1000
        self.canvheight = 800
        turtle._Screen._canvas = self._canvas = canvas = turtle.ScrolledCanvas(
                root, 800, 600, self.canvwidth, self.canvheight)
        canvas.adjustScrolls()
        canvas._rootwindow.bind('<Configure>', self.onResize)
        canvas._canvas['borderwidth'] = 0

        self.screen = _s_ = turtle.Screen()
        turtle.TurtleScreen.__init__(_s_, _s_._canvas)
        self.scanvas = _s_._canvas
        turtle.RawTurtle.screens = [_s_]
        return canvas