生成手机号码代码

import string, random

all_num = []
def phone():
    phone_number = input('请输入想要产生的条数：').strip()
    phone_number = int(phone_number) #转化为int
    for i in range(phone_number):
        p = random.sample(string.digits, 8) #随机生成8位数字
        nums = '138' + ''.join(p)+'\n' #拼接下
        if nums not in all_num:  #判断如果不在
            all_num.append(nums)
    
def weite_file():
    with open('phones.txt', 'a+') as f:
            f.writelines(all_num)
phone()
weite_file()