code: def list_mapping(html_cleaned):
      
      unit_raw = html_cleaned.split('\n')
      for i in unit_raw:
          c = CDM(i)
          if c.PTN is not 0:
              fake_title = i
              break
  
      init_list = []
      init_dict = {}
      for i in unit_raw:
          init_list.append(len(i))
      for i in range(0, len(init_list)):
          init_dict[i] = init_list[i]
      init_dict = sorted(init_dict.items(), key=lambda item: item[1], reverse=True)
      try:
          log('debug', '映射成功，提取的虚假标题为：【{}】'.format(fake_title))
      except UnboundLocalError:
          fake_title = ''
          log('err', '虚假标题提取失败')
      return unit_raw, init_dict, fake_title
docs: 将预处理后的网页文档映射成列表和字典，并提取虚假标题
  
      Keyword arguments:
      html_cleaned            -- 预处理后的网页源代码，字符串类型
      Return:
          unit_raw                -- 网页文本行
          init_dict               -- 字典的key是索引，value是网页文本行，并按照网页文本行长度降序排序
          fake_title              -- 虚假标题，即网页源代码<title>中的文本行