python实现的简单抽奖系统实例

#!/usr/bin/env python
#coding=utf-8
from Tkinter import *
import time
import random
class App:
 def __init__(self,master):
 frame = Frame(master)
 frame.pack()
 v = StringVar()
 self.e = Entry(frame,textvariable=v,bd='5')
 v.set('')
 self.v = v
 self.e.pack(padx=5)
 self.button1 = Button(frame,text = 'start',fg='red',command=self.start_hi)
 self.button1.pack(side=LEFT)
 self.button2 = Button(frame,text='stop',fg = 'blue',command=self.say_stop)
 self.button2.pack(side=LEFT)
 self.root=master
 self.stop = 0
 #scrollbar = Scrollbar(frame, orient=VERTICAL)
 #self.b1 = Listbox(frame, yscrollcommand=scrollbar.set)
 #scrollbar.pack(side=RIGHT, fill=Y)
 #self.b1.pack(side=LEFT, fill=BOTH, expand=1)
 def list_star(self):
 star = []
 file = open('yaojiang.txt','r+')
 data = file.readlines()
 file.close()
 for n in data:
 l1 = n.split(':')
 a = l1[0] + ':'+ l1[1][:4] + 'xxxx' + l1[1][8:12]
 a = a.strip()
 star.append(a)
 return star
 def start_hi(self):
 self.stop = 0 
 #star = []
 #file = open('yaojiang.txt','r+')
 #data = file.readlines()
 #file.close()
 #for n in data:
 #l1 = n.split(':')
 #a = l1[0] + ':'+ l1[1][:4] + 'xxxx' + l1[1][8:12]
 #a = a.strip()
 #star.append(a)
 star = self.list_star()
 self.update_clock(star)
 def say_stop(self):
 self.stop = 1
 #b = self.start()
 def update_clock(self,star):
 b = random.choice(star)
 self.v.set(b)
 if self.stop == 1:
 return
 self.root.after(50, self.update_clock,star)
root = Tk()
app = App(root)
root.mainloop()