#!/usr/bin/env python
#-*-coding=utf-8 -*-
#AUTHOR:duwentao
import random
chechkcode = ''
for i in range(4):
current = random.randrange(0,4)
#字母
if current == i:
tmp = chr(random.randint(65,90))
#数字
else:
tmp = random.randint(0,9)
chechkcode += str(tmp)
print(chechkcode)
简单的验证码程序
原文：http://blog.51cto.com/tdcqvip/2058999
