# -*- coding=utf-8 -*-
import wx
import  wx.lib.scrolledpanel as scrolled

class IFCDetails(wx.Frame):
    #单个滚动条 本次提交作为还原节点
def __init__(self, parent, id):
        # 首先检索屏幕大小
screenSize = wx.DisplaySize()
        screenWidth = screenSize[0]
        screenHeight = screenSize[1]
        panelWidth = (screenWidth / 3)+100
a = panelWidth * 2
b = screenHeight + screenHeight
        #, size=(screenWidth, screenHeight)
wx.Frame.__init__(self, parent, id, title="IFC转化工具", size=(screenWidth, screenHeight))
        self.panel1 = scrolled.ScrolledPanel(self, -1, size=(panelWidth, screenHeight), pos=(0, 0))
        self.panel2 = scrolled.ScrolledPanel(self, id, size=(panelWidth, screenHeight), pos=(panelWidth+20, 0))
        self.panel1.SetScrollbars(0, 10, 1440, 900, xPos=100, yPos=0)
        self.panel2.SetScrollbars(0, 10, 1440, 900, xPos=100, yPos=0)

        bt = wx.Button(self.panel1, id, label="点击")
        bt.Bind(wx.EVT_BUTTON, self.onclick)

    def onclick(self,event):
        gs = wx.GridSizer(4, 4, 0, 0)
        for i in range(1, 17):
            btn = "Btn" + str(i)
            gs.Add(wx.Button(self.panel2, label=btn), 0, 0)
            self.SetSizer(gs)

if __name__ == '__main__':
    app = wx.App()
    frame = IFCDetails(parent=None, id=-1)
    frame.Show()
    app.MainLoop()

为什么我点击按钮后，girdSizer 布局没有效果，拖动窗口大小，就又有效果了？？？