class_docstr: 读取 **WeiboNER** 数据，如果您要使用该数据，请引用以下的文章：
  
  Nanyun Peng and Mark Dredze, 2015, Named Entity Recognition for Chinese Social Media with Jointly Trained Embeddings.
  
  数据中的格式应该类似与下列的内容::
  
      老       B-PER.NOM
      百       I-PER.NOM
      姓       I-PER.NOM
  
      心       O
  
      ...
  
  读取的 :class:`~fastNLP.core.DataSet` 将具备以下的数据结构：
  
      .. csv-table::
  
          :header: "raw_chars", "target"
  
          "['老', '百', '姓']", "['B-PER.NOM', 'I-PER.NOM', 'I-PER.NOM']"
          "['心']", "['O']"
          "[...]", "[...]"
  
      
class_docstr_tok: ["\u8bfb\u53d6","*","*","WeiboNER","*","*","\u6570\u636e\uff0c\u5982\u679c\u60a8\u8981\u4f7f\u7528\u8be5\u6570\u636e\uff0c\u8bf7\u5f15\u7528\u4ee5\u4e0b\u7684\u6587\u7ae0\uff1a","Nanyun","Peng","and","Mark","Dredze",",","2015",",","Named","Entity","Recognition","for","Chinese","Social","Media","with","Jointly","Trained","Embeddings",".","\u6570\u636e\u4e2d\u7684\u683c\u5f0f\u5e94\u8be5\u7c7b\u4f3c\u4e0e\u4e0b\u5217\u7684\u5185\u5bb9",":",":","\u8001","B-PER.NOM","\u767e","I-PER.NOM","\u59d3","I-PER.NOM","\u5fc3","O","...","\u8bfb\u53d6\u7684",":","class",":","`","~fastNLP.core.DataSet","`","\u5c06\u5177\u5907\u4ee5\u4e0b\u7684\u6570\u636e\u7ed3\u6784\uff1a","..","csv-table",":",":",":","header",":","``","raw_chars","''",",","``","target","''","``","[","'","\u8001","'",",","'","\u767e","'",",","'","\u59d3","'","]","''",",","``","[","'","B-PER.NOM","'",",","'","I-PER.NOM","'",",","'","I-PER.NOM","'","]","''","``","[","'","\u5fc3","'","]","''",",","``","[","'","O","'","]","''","``","[","...","]","''",",","``","[","...","]","''"]
docstr: 自动下载 **Weibo-NER** 的数据。
  
  :return: 数据集目录地址
docstr_tok: ["\u81ea\u52a8\u4e0b\u8f7d","*","*","Weibo-NER","*","*","\u7684\u6570\u636e\u3002",":","return",":","\u6570\u636e\u96c6\u76ee\u5f55\u5730\u5740"]
code: def download(self) -> str:
      r"""
      自动下载 **Weibo-NER** 的数据。
  
      :return: 数据集目录地址
      """
      dataset_name = "weibo-ner"
      data_dir = self._get_dataset_path(dataset_name=dataset_name)
  
      return data_dir
  
imports: import glob
  import os
  import random
  import shutil
  import time
  from typing import List
  from .loader import Loader
  from ..file_reader import _read_conll
  from fastNLP.core.dataset import DataSet, Instance
label_desc: Use image node_id 2 for calling the WeiboNERLoader obj's underlying member method code with example usage: obj.download() and returns: data_dir