code: def gen_random_mobile():
      
      prefix_list = ["13",
                     "1400", "1410", "1440", "145", "146", "147", "148",
                     "15",
                     "162", "165", "166", "167",
                     "170", "171", "172", "173", "175", "176", "177", "178", "1740",
                     "18",
                     "191", "198", "199"]
      prefix_str = random.choice(prefix_list)
      return prefix_str + "".join(random.choice("0123456789") for _ in range(11 - len(prefix_str)))
docs: 随机生成一个手机号
  
      :return:
          * str: (string) 手机号
  
      举例如下::
  
          print('--- gen_random_mobile demo ---')
          print(gen_random_mobile())
          print(gen_random_mobile())
          print('---')
  
      执行结果::
  
          --- gen_random_mobile demo ---
          16706146773
          14402633925
          ---