$grid->actions(function (Grid\Displayers\Actions $actions) {
  if ($actions->getKey() == 1) {
    $actions->disableDelete();
  }
});

$grid->tools(function (Grid\Tools $tools) {
  $tools->batch(function (Grid\Tools\BatchActions $actions) {
    $actions->disableDelete();
  });
});

$grid->actions(function ($actions) {

  //关闭行操作 删除

  $actions->disableDelete();

});