code: public function delBakup($bakup_id)
      {
          try {
              $bakup_path = $this->getBakupPath();
              $bakup = $this->model->get($bakup_id);
              unlink($bakup_path . $bakup['dump_file']);
          } catch (\Exception $e) {}
          
          return $this->model->del($bakup_id);
      }
docs: 删除备份
  
  @param number $bakup_id
  @return number