code: def dumps(dict_data, ensure_ascii=True, indent=None,
            sort_keys=False, encoding='utf-8', **kwargs):
      
  
      return json.dumps(dict_data, default=json_default,
                        ensure_ascii=ensure_ascii, indent=indent,
                        sort_keys=sort_keys, encoding=encoding, **kwargs)
docs: 返回json数据
      :param encoding:
      :param ensure_ascii:
      :param sort_keys:
      :param indent:
      :param dict_data:
      :return: