largeQ
keys如果字典中的 是字符串，那应该可以工作。如果不是，您应该从以下位置收到错误：choices=list(self.algorithms.keys())choices应该list是strings在这种情况下尝试：choices=[str(k) for k in self.algorithms]反而。编辑风格wx.CB_READONLY字符串必须在组合框选项列表中这不是其他样式的情况因此，如果将索引用于该选择，则必须小心这是一些应该可以工作的简单代码：import wxclass Myframe(wx.Frame): def __init__(self): wx.Frame.__init__(self, None) self.my_choices = {"Choose a sport":0,"Board Sports":1,"Ball Sports":2,"Fight Sports":3} #self.my_choices = ["Board Sports","Ball Sports","Fight Sports"] self.my_subchoices = [[],["Skate boarding","Surfing","Ski boarding"],["Football","Cricket","Rugby"],["Boxing","Wrestling","Karate"]] pan = wx.Panel(self) self.cbx = wx.ComboBox(pan, -1, value = "Choose a sport", pos=(10,30), size=(300,30),choices=list(self.my_choices),style=wx.CB_DROPDOWN | wx.CB_READONLY ) self.cbx.Bind(wx.EVT_COMBOBOX, self.on_selection) def on_selection(self, evt): Choice = self.cbx.GetSelection() msg = "" # # Ignore choice 0 because of style wx.CB_READONLY or include a blank entry # for choice 0 in my_subchoices for x in self.my_subchoices[Choice]: msg += x+"\n" self.cbx.SetToolTip(msg)if __name__ == "__main__": App = wx.App() Myframe().Show() App.MainLoop()