是什么让wxpython TextCtrl水平填充

Question

我有TextCtrl一个水平的BoxSizer。它的权重为1（权重为0的按钮旁边）。当我运行该程序TextCtrl时，无论窗口的大小如何，它将保持固定的宽度，并在其旁边留有空白。为什么？这是代码：wxapp = wx.App()wxFrame = wx.Frame(None, -1 , 'Switch Time Zones', (0,0),(340,64))wxFrame.Centre()mainBox = wx.BoxSizer(wx.VERTICAL)wxFrame.SetSizer(mainBox)...#A few things are added to mainBoxoutputBox = wx.BoxSizer(wx.HORIZONTAL)mainBox.Add(outputBox, 1, wx.ALIGN_BOTTOM)...#A few things are added to other boxessubmitButton = wx.Button(wxFrame,label='solve:')outputBox.Add(submitButton,0)outputText = wx.TextCtrl(wxFrame)outputText.SetEditable(False)outputBox.Add(outputText,1)wxFrame.Show()wxapp.MainLoop()