code: def batch(self, operations):
          
          url = '{0}/batch'.format(config.get_default('default_rs_host'))
          return self.__post(url, dict(op=operations))
docs: 批量操作:
  
          在单次请求中进行多个资源管理操作，具体规格参考：
          http://developer.qiniu.com/docs/v6/api/reference/rs/batch.html
  
          Args:
              operations: 资源管理操作数组，可通过
  
          Returns:
              一个dict变量，返回结果类似：
                  [
                      { "code": <HttpCode int>, "data": <Data> },
                      { "code": <HttpCode int> },
                      { "code": <HttpCode int> },
                      { "code": <HttpCode int> },
                      { "code": <HttpCode int>, "data": { "error": "<ErrorMessage string>" } },
                      ...
                  ]
              一个ResponseInfo对象