Python 12---图形界面

def load(event):
f= open(filename.GetValue())
contents.SetValue(f.read())
f.close()

def save(event):
newcontents = contents.GetValue()
with open(filename.GetValue(),'w') as f:
f.write(newcontents)
contents.SetValue('')

import wx
app = wx.App()

win = wx.Frame(None,title ='Simple Editor', size=(410,335))
bkg = wx.Panel(win)
loadbtn = wx.Button(bkg,label='Open')
savebtn = wx.Button(bkg,label='Save')
filename = wx.TextCtrl(bkg)
contents = wx.TextCtrl(bkg,style=wx.TE_MULTILINE | wx.HSCROLL)

loadbtn.Bind(wx.EVT_BUTTON,load)
savebtn.Bind(wx.EVT_BUTTON,save)

hbox = wx.BoxSizer()
hbox.Add(filename,proportion=1,flag=wx.EXPAND)
hbox.Add(loadbtn,proportion=0,flag = wx.LEFT, border = 5)
hbox.Add(savebtn,proportion=0,flag = wx.LEFT,border = 5)

vbox = wx.BoxSizer(wx.VERTICAL)
vbox.Add(hbox,proportion=0,flag = wx.EXPAND | wx.ALL, border =5)
vbox.Add(contents,proportion=1,
flag = wx.EXPAND | wx.LEFT| wx.BOTTOM | wx.RIGHT,border =5)
bkg.SetSizer(vbox)
win.Show()

app.MainLoop()