使用wxPython清除matplotlib中的背景

pip install wxPython matplotlib

import wx
import matplotlib.pyplot as plt
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas

class MyFrame(wx.Frame):
    def __init__(self, parent, title):
        super(MyFrame, self).__init__(parent, title=title, size=(800, 600))
        self.InitUI()

    def InitUI(self):
        panel = wx.Panel(self)
        sizer = wx.BoxSizer(wx.VERTICAL)

        self.figure = plt.figure()
        self.axes = self.figure.add_subplot(111)
        self.canvas = FigureCanvas(panel, -1, self.figure)
        sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.EXPAND)

        panel.SetSizer(sizer)
        self.Layout()

        self.axes.clear()
        self.axes.plot([0, 1], [0, 1])
        self.canvas.draw()

if __name__ == '__main__':
    app = wx.App()
    frame = MyFrame(None, 'wxPython and matplotlib')
    frame.Show()
    app.MainLoop()