Python基礎-random模塊及隨機生成11位手機號

import random

# print(random.random())  # 隨機浮點數，默認取0-1，不能指定范圍
# print(random.randint(1, 20))  # 隨機整數，顧頭顧尾
# print(random.choice('sdfsd233'))  # 隨機取一個元素
# print(random.sample('hello234234史蒂夫34', 4))#從序列中隨機取幾個元素,返回是一個list

# f =random.uniform(1, 9)  # 隨機取浮點數，可以指定范圍
# x = [1, 2, 3, 4, 6, 7]
# random.shuffle(x)  # 洗牌,打亂順序，會改變原list的值
# print(x)

利用隨機數生成11位手機號

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)