本文实例讲述了python实现的简单抽奖系统。分享给大家供大家参考。具体实现方法如下：
#!/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()
希望本文所述对大家的python程序设计有所帮助。