如何防止垂直大小调整器在wxformbuilder中将孩子完全向下扩展

As you have noticed "stuff" expands to fit when using sizers and the proportion flag can wreak havoc with your layout if not used properly.
Play with this simple bit of code:

import wx

class Summary(wx.Frame):

    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Playing with Simple Sizers", size=(430,260))

        self.panel = wx.Panel(self, wx.ID_ANY)
        self.log = wx.TextCtrl(self.panel, wx.ID_ANY, value="input1:",size=(428,25))
        self.log2 = wx.TextCtrl(self.panel, wx.ID_ANY, value="input2:", size=(428,25))
        self.quit_button = wx.Button(self.panel, label="Quit",size=(60,25))
        self.button1= wx.Button(self.panel, label="1",)
        self.button2 = wx.Button(self.panel, label="2",size=(60,25))
        self.button3 = wx.Button(self.panel, label="3",size=(60,25))
        self.button4 = wx.Button(self.panel, label="4",size=(60,25))
        self.quit_button.Bind(wx.EVT_BUTTON, self.OnQuit)

        vbox = wx.BoxSizer(wx.VERTICAL)
        hbox1 = wx.BoxSizer(wx.HORIZONTAL)
        hbox2 = wx.BoxSizer(wx.HORIZONTAL)
        hbox3 = wx.BoxSizer(wx.HORIZONTAL)
        hbox4 = wx.BoxSizer(wx.HORIZONTAL)

        vbox.Add(self.quit_button, 0, wx.ALL|wx.EXPAND, 1)
        hbox1.Add(self.log, 0, wx.ALL|wx.EXPAND, 1)
        hbox2.Add(self.log2, 0, wx.ALL|wx.EXPAND, 1)

        hbox3.Add(self.button1, 1, wx.ALL|wx.EXPAND, 1)
        hbox3.Add(self.button2, 2, wx.ALL|wx.EXPAND, 1)
        hbox4.Add(self.button3, 0, wx.ALL|wx.EXPAND, 1)
        hbox4.Add(self.button4, 1, wx.ALL|wx.EXPAND, 1)

        vbox.Add(hbox1, 0, wx.ALIGN_RIGHT|wx.EXPAND, 1)
        vbox.Add(hbox3, 0, wx.ALIGN_RIGHT|wx.EXPAND, 1)
        vbox.Add(hbox4, 0, wx.ALIGN_RIGHT|wx.EXPAND, 1)
        vbox.Add(hbox2, 0, wx.ALIGN_RIGHT|wx.EXPAND, 1)

        self.panel.SetSizer(vbox)
        self.Show()

    def OnQuit(self, event):
        self.Close()
# Run the program
if __name__ == "__main__":
    app = wx.App()
    frame = Summary()
    app.MainLoop()

比例标记是添加到sizer中时的第二个参数。
您将注意到按钮的设置为0、1和2，对其进行更改并查看按钮之间的关系，并使用按钮的size参数进行播放。
将self.log或self.log2上的比例标志更改为1，然后观察其扩展。
最后，使框架尺寸变宽，然后看一下反应。
大小调整器一开始可能非常令人沮丧，但是一旦“获得”，它们就是强大的工具。