scrolledPanel wxpython中的许多面板

Question

我的问题是：

我在一个框架中创建了一个滚动面板。在这个滚动面板中，我有一个BoxSizer，它包含几个面板。当我在BoxSizer中添加许多面板时，面板都堆叠在BoxSizer的末尾。你知道吗

我完全被这个问题困住了，仍然不知道如何解决它。你知道吗

class MyForm(wx.Frame):

#----------------------------------------------------------------------
def __init__(self):
    wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial", size=(200,500))

    # Add a panel so it looks the correct on all platforms
    self.panel = wx.Panel(self, wx.ID_ANY)

    # --------------------
    # Scrolled panel stuff
    self.scrolled_panel = scrolled.ScrolledPanel(self.panel, -1,
                             style = wx.TAB_TRAVERSAL|wx.SUNKEN_BORDER, name="panel1")
    self.scrolled_panel.SetAutoLayout(1)
    self.scrolled_panel.SetupScrolling()

    words = range(0,2000)
    self.spSizer = wx.BoxSizer(wx.VERTICAL)
    self.spSizer1 = wx.BoxSizer(wx.VERTICAL)
    self.spSizer2 = wx.BoxSizer(wx.VERTICAL)

    for word in words:
        text = wx.TextCtrl(self.scrolled_panel, value=str(word))
        self.spSizer.Add(text)

    self.scrolled_panel.SetSizer(self.spSizer)
    self.scrolled_panel.Layout()
    self.scrolled_panel.SetupScrolling()
    # --------------------

    btn = wx.Button(self.panel, label="Add Widget")
    btn.Bind(wx.EVT_BUTTON, self.onAdd)

    panelSizer = wx.BoxSizer(wx.VERTICAL)
    panelSizer.AddSpacer(50)
    panelSizer.Add(self.scrolled_panel, 1, wx.EXPAND)
    panelSizer.Add(btn)
    self.panel.SetSizer(panelSizer)


#----------------------------------------------------------------------
def onAdd(self, event):
    """"""
    print "in onAdd"
    new_text = wx.TextCtrl(self.scrolled_panel, value="New Text")
    self.spSizer.Add(new_text)
    self.scrolled_panel.Layout()
    self.scrolled_panel.SetupScrolling()

 # Run the program
if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm().Show()
    app.MainLoop()

我放了一个代码示例来说明这个问题