wxpython計算機架構__python

#!/usr/bin/python#coding: utf-8import wxclass MyFrame(wx.Frame):    "整體架構"    # 聲明一個類變數    labels = "1 2 3 + 4 5 6 - 7 8 9 * 0 . = /"    def __init__(self):        super(MyFrame, self).__init__(None, -1, "Calc", style=wx.DEFAULT_FRAME_STYLE ^ (                                          wx.RESIZE_BORDER | wx.MINIMIZE_BOX | wx.MAXIMIZE_BOX))        panel = wx.Panel(self, -1, size = (400, 300))        sizer = wx.GridBagSizer(hgap=5, vgap=4)        self.button = wx.Button(panel, -1, u"AC", size = (50, 25))        self.button.Bind(wx.EVT_BUTTON, self.OnAC)        sizer.Add(self.button, pos=(0, 0), span=(1, 1), flag=wx.EXPAND)        self.text = wx.TextCtrl(panel, -1, u"0")        self.text.Enable(False)        sizer.Add(self.text, pos = (0, 1), span = (1, 3), flag = wx.EXPAND)        num = 0        for row in range(1, 5):            for col in range(4):                self.btn = wx.Button(panel, -1, label = self.labels.split()[num],size = (50, 50))                sizer.Add(self.btn, pos = (row, col))                num += 1                self.btn.Bind(wx.EVT_BUTTON, self.OnButton2)        self.SetSizer(sizer)        self.Fit()    def OnAC(self, event):        self.text.SetValue("0")    def OnButton2(self, event):        passif __name__ == "__main__":    app = wx.App()    frame = MyFrame()    frame.Show(True)    app.MainLoop()