#!/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()</pre>