本文实例讲述了python实现的简单窗口倒计时界面。分享给大家供大家参考。具体分析如下：

下面的代码通过Tkinter制作windows窗口界面，然后时间了一个简单的倒计时功能，代码可以直接运行

# Countdown using Tkinter 
from Tkinter import *
import time
import tkMessageBox
class App:
 def __init__(self,master):
  frame = Frame(master)
  frame.pack()
  self.entryWidget = Entry(frame)
  self.entryWidget[\"width\"] = 15
  self.entryWidget.pack(side=LEFT)
  self.hi_there = Button(frame,text=\"Start\",command=self.start)
  self.hi_there.pack(side=LEFT)
  self.button = Button(frame,text=\"QUIT\",fg=\"red\",command=frame.quit)
  self.button.pack(side=LEFT)
 def start(self):
  text = self.entryWidget.get().strip()
  if text != \"\":
   num = int(text)
   self.countDown(num)
 def countDown(self,seconds):
  lbl1.config(bg=\'yellow\')
  lbl1.config(height=3, font=(\'times\',20,\'bold\'))
  for k in range(seconds, 0, -1):
   lbl1[\"text\"] = k
   root.update()
   time.sleep(1)
  lbl1.config(bg=\'red\')
  lbl1.config(fg=\'white\')
  lbl1[\"text\"] = \"Time up!\"
  tkMessageBox.showinfo(\"Time up!\",\"Time up!\")
 def GetSource():
  get_window = Tkinter.Toplevel(root)
  get_window.title(\'Source File?\')
  Tkinter.Entry(get_window, width=30,
      textvariable=source).pack()
  Tkinter.Button(get_window, text=\"Change\",
      command=lambda: update_specs()).pack()
root = Tk()
root.title(\"Countdown\")
lbl1 = Label()
lbl1.pack(fill=BOTH, expand=1)
app = App(root)
root.mainloop()

希望本文所述对大家的Python程序设计有所帮助。