Python3-random模块-生成伪随机数

import random

# 生成数字加字母的验证码
check_code = ''
for i in range(4):
    current = random.randrange(0, 4)
    if current != i:
        temp = chr(random.randint(65, 90))
    else:
        temp = random.randint(0, 9)
    check_code += str(temp)
print(check_code)