看来是越来越生疏了。

记录一下

$bool = (new MineMineCollection)->import(

            StdElementDto::class, new StdElementData(), function($model, $data) use ($formData) {

            // Todo 业务代码...

                if (!empty($data)){

                    foreach ($data as $k=>$v){

                        if ($v['category_id']==''){

                            $data[$k]['category_id']=$formData['category_id'];

                            unset($data[$k]['category']);

                        }

                        //初始化数据

                    }

                }

                //console()->error(var_export($data,true));

            return true;

        }

        );

用的use语法，参考：

https://wiki.swoole.com/wiki/page/323.html