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写一个随机产生138开头手机号的程序
1、输入一个数量，产生xx条手机号
prefix = \'138\'
2、产生的这些手机号不能重复

import random
import string

count = input("请输入要生成的手机号个数：")

if count.isdigit():
    phonelist = []
    for i in range(int(count)):
        prefix = \'138\'
        phone = prefix + \'\'.join(random.sample(string.digits,9))
        if phone not in phonelist:
            phonelist.append(phone)
            print("手机号：",phonelist)
        else:
            print("手机号重复")

else:
    print("请输入正确的个数")