python 手机号码_python 小练习之生成手机号码

需求分析：

1 将固定的号码段放到list中 如：136 137 180 183等等

2 随机取8个数字元素

3 将固定号码段与随机产生的元素拼接在一起

4 写入文件

import string

def phone_num(num):

all_phone_nums=set()

num_start = ['134', '135', '136', '137', '138', '139', '150', '151', '152', '158', '159', '157', '182', '187', '188',

'147', '130', '131', '132', '155', '156', '185', '186', '133', '153', '180', '189']

for i in range(num):

start = random.choice(num_start)

end = ''.join(random.sample(string.digits,8))

res = start+end+'\n'

all_phone_nums.add(res)

with open('phone_num.txt','w',encoding='utf-8') as fw:

fw.writelines(all_phone_nums)

phone_num(1000)