class MainFace(wxFrame): 

    def __init__(self, parent, ID, title): 



        ..............



        billPanel = wx.Panel(self, -1)

        gbs = self.gbs = wx.GridBagSizer(14, 5)



        gbs.Add( wx.StaticText(billPanel, -1, "付款帐号"), (0,1), (1,2), 

                wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL)

        gbs.Add( wx.Choice(billPanel, -1, choices = sampleList), (0,3), (1,9),

wx.EXPAND )

        gbs.Add( wx.StaticText(billPanel, -1, "用途"), (0,12), (1,1), 

                wx.ALIGN_RIGHT | wx.ALIGN_CENTER_VERTICAL)

        gbs.Add( wx.Choice(billPanel, -1,(10, 10), choices = sampleList2), (0,13),

(1,2), wx.EXPAND )



        ...............

        ...............



        gbs.AddGrowableCol(3)

        gbs.AddGrowableCol(7)

        gbs.SetHGap(5)

        gbs.SetVGap(5)



        billPanel.SetSizerAndFit(gbs)

        self.SetClientSize((600, 340))