逃少兑换码生成器：免费领取，无限兑换

```python

import random

import string

def generate_exchange_code(length=8):

定义字符集，包括大小写字母和数字

characters = string.ascii_letters + string.digits

随机选择指定长度的字符

code = ''.join(random.choice(characters) for _ in range(length))

return code

def main():

while True:

user_input = input()

if user_input.lower() == 'exit':

break

exchange_code = generate_exchange_code()

if __name__ == "__main__":

main()

```