QCloudSMHBatchDeleteRequest *req = [QCloudSMHBatchDeleteRequest new];
req.libraryId = @"libraryId";
req.spaceId = @"spaceId";
req.userId = @"userId";
req.spaceOrgId = @"spaceOrgId";
req.batchInfos = @[];
[req setFinishBlock:^(QCloudSMHBatchResult *result, NSError * _Nullable error) {
  if it is a sync task, obtain the task status from the http status code
  QCloudSMHBatchTaskStatus status = QCloudSMHBatchTaskStatusTypeFromStatus([result __originHTTPURLResponse__].statusCode);
  result.status = status;
  if(status != QCloudSMHBatchTaskStatusWating || error){
      // End when task status is not wait or there is an error
      if(self.finishBlock){
          self.finishBlock(result, error);
      }
  }else{
      // Use the returned taskid to poll task status
      self.taskId = result.taskId;
  }
}];
[[QCloudSMHService defaultSMHService]batchDelete:req];


QCloudGetTaskStatusRequest *req = [QCloudGetTaskStatusRequest new];
req.spaceId = @"spaceId";
req.spaceOrgId = @"spaceOrgId";
req.libraryId = @"libraryId";
req.userId = @"userId";
// Back taskId
req.taskIdList = @[taskId];
[req setFinishBlock:^(NSArray * _Nonnull result, NSError * _Nonnull error) {

}];
[[QCloudSMHService defaultSMHService] getTaskStatus:req];