Python根据区号生成手机号码的方法

# _*_ coding:utf-8 _*_
#xiaohei.python.seo.call.me:)
#win+python2.7.x
number = "1350571" #这里演示杭州区号
with open("hm.txt","w") as f:
  for i in range(0001,9999):
    ok = number + "{:0>4d}".format(i) + "\n"
    f.write(ok)