利用python实现简单随机验证码

 #！/usr/bin/env python
 # -*- coding:utf-8 -*-
 import random
 temp =''
 for i in range(6):
     num = random.randrange(0,4)
     if num ==3 or num == 1:
         rad2 = random.randrange(0,10)
         temp = temp + str(rad2)
     else:
         rad1 = random.randrange(65,91)
         c1 = chr(rad1)
         temp = temp + c1

 print(temp)