wxPython程序的退出

# after the last window closes but before wxPython’s internal cleanup.
# normal shutdown
#   wx.App.OnExit()
#   Even if the application is closed with wx.Exit(), the OnExit() method is still triggered.
# emergency shutdown
#   1. wx.App.ExitMainLoop()
#   2. wx.Exit()
def OnExit(self):
print "OnExit"