oldGoodsTable)) { echo $this->oldGoodsTable." 不存在 跳过\n"; return; } $dataList = \Illuminate\Support\Facades\DB::table($this->goodsTable)->get(); if($dataList->isNotEmpty()){ echo "{$this->goodsTable}已经有数据了跳过\n"; return ; } $list = \Illuminate\Support\Facades\DB::table($this->oldGoodsTable)->get(); if($list){ } } }