第9章 GUI编程
9.1 设计一个窗体，并放置一个按钮，单击按钮后弹出颜色对话框，关闭颜色对话框后提示选中的颜色。
答：Python 2.7.8代码如下，
import wx
class wxGUI(wx.App): def OnInit(self):
frame = wx.Frame(parent=None, title='wxGUI', size=(160,140)) panel = wx.Panel(frame, -1)
buttonOK = wx.Button(panel, -1, 'OK', pos=(0,0))
self.Bind(wx.EVT_BUTTON, self.OnButtonOK, buttonOK)
frame.Show() return True
def OnButtonOK(self, event):
colorDlg = wx.ColourDialog(None) colorDlg.ShowModal()
color = colorDlg.GetColourData().Colour wx.MessageBox(str(color))
app = wxGUI() app.MainLoop()
9.2 设计一个窗体，并放置一个按钮，按钮默认文本为“开始”，单击按钮后文本变为“结束”，再次单击后变为“开始”，循环切换。
答：Python 2.7.8代码如下，
import wx
class wxGUI(wx.App): def OnInit(self):
frame = wx.Frame(parent=None, title='wxGUI', size=(160,140)) panel = wx.Panel(frame, -1)
self.buttonOK = wx.Button(panel, -1, 'Start', pos=(0,0))
self.Bind(wx.EVT_BUTTON, self.OnButtonOK, self.buttonOK)
frame.Show() return True
def OnButtonOK(self, event):
text = self.buttonOK.GetLabelText()
if text == 'Start':
self.buttonOK.SetLabelText('End') elif text == 'End':
self.buttonOK.SetLabelText('Start')
app = wxGUI() app.MainLoop()
9.3 设计一个窗体，模拟QQ登录界面，当用户输入号码123456和密码654321时提示正确，否则提示错误。
答：Python 2.7.8代码如下，
import wx
class wxGUI(wx.App): def OnInit(self):
frame = wx.Frame(parent=None, title='Login', size=(250,150), pos=(350,350)) panel = wx.Panel(frame, -1)
label1 = wx.StaticText(panel, -1, 'UserName:', pos=(0,10), style=wx.ALIGN_RIGHT) label2 = wx.StaticText(panel, -1, 'Password:', pos=(0,30), style=wx.ALIGN_RIGHT)
self.textName = wx.TextCtrl(panel, -1, pos=(70,10), size=(160,20)) self.textPwd = wx.TextCtrl(panel, -1, pos=(70,30), size=(160,20),style=wx.TE_PASSWORD)
buttonOK = wx.Button(panel, -1, 'OK', pos=(30,60))
self.Bind(wx.EVT_BUTTON, self.OnButtonOK, buttonOK) buttonCancel = wx.Button(panel, -1, 'Cancel', pos=(120,60))
self.Bind(wx.EVT_BUTTON, self.OnButtonCancel, buttonCancel) buttonOK.SetDefault()
frame.Show() return True
def OnButtonOK(self, event):
usrName = self.textName.GetValue() usrPwd = self.textPwd.GetValue()
if usrName=='123456' and usrPwd=='654321': wx.MessageBox('Right') else:
wx.MessageBox('Wrong') def OnButtonCancel(self, event): pass app = wxGUI() app.MainLoop()