1. 生成源码

复制代码 代码如下:

-- coding: utf-8 --

import random

def generate_verification_code():
''' 随机生成6位的验证码 '''
code_list = []
for i in range(10): # 0-9数字
code_list.append(str(i))
for i in range(65, 91): # A-Z
code_list.append(chr(i))
for i in range(97, 123): # a-z
code_list.append(chr(i))

myslice = random.sample(code_list, 6)  # 从list中随机获取6个元素，作为一个片断返回  
verification_code = ''.join(myslice) # list to string  
# print code_list  
# print type(myslice)  
return verification_code

def generate_verification_code2():
''' 随机生成6位的验证码 '''
code_list = []
for i in range(2):
random_num = random.randint(0, 9) # 随机生成0-9的数字

利用random.randint()函数生成一个随机整数a，使得65<=a<=90

    # 对应从"A"到"Z"的ASCII码  
    a = random.randint(65, 90)  
    b = random.randint(97, 122)  
    random_uppercase_letter = chr(a)  
    random_lowercase_letter = chr(b)

    code_list.append(str(random_num))  
    code_list.append(random_uppercase_letter)  
    code_list.append(random_lowercase_letter)  
verification_code = ''.join(code_list)  
return verification_code

if name == 'main':
code = generate_verification_code()
code2 = generate_verification_code2()
print code
print code2