我从这里得到参考：https://laravel-excel.maatwebsite.nl/docs/3.0/getting-started/basics
所以我用版本3
我的控制器是这样的：

public function exportToExcel(Request $request)
{
    $data = $request->all();
    $exporter = app()->makeWith(SummaryExport::class, compact('data'));   
    return $exporter->download('Summary.xlsx');
}

我的脚本导出到excel如下：

namespace App\Exports;
use App\Repositories\ItemRepository;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\WithHeadings;
class SummaryExport implements FromCollection, WithHeadings {
    use Exportable;
    protected $itemRepository;
    protected $data;
    public function __construct(ItemRepository $itemRepository, $data) {
        $this->itemRepository = $itemRepository;
        $this->data = $data;
    }
    public function collection()
    {
        $items = $this->itemRepository->getSummary($this->data);
        return $items;
    }
    public function headings(): array
    {
        return [
            'No',
            'Item Number',
            'Sold Quantity',
            'Profit'
        ];
    }
}

如果脚本执行，结果如下：

我想在表格上方添加一些说明或标题，并对销售数量列和利润列求和
所以我想要这样的结果：

我已经阅读了文档，并在谷歌搜索，但我没有找到解决方案
有人能帮忙吗？

• • 更新**

根据该参考文献：https://laravel-excel.maatwebsite.nl/docs/3.0/export/extending
我试着补充：

....
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Events\BeforeExport;
use Maatwebsite\Excel\Events\BeforeWriting;
use Maatwebsite\Excel\Events\BeforeSheet;
use Maatwebsite\Excel\Events\AfterSheet;
class SummaryExport implements FromCollection, WithHeadings, WithColumnFormatting, ShouldAutoSize, WithEvents
{
    ...
    public function registerEvents(): array
    {
        return [
            BeforeExport::class  => function(BeforeExport $event) {
                $event->writer->setCreator('Patrick');
            },
            AfterSheet::class    => function(AfterSheet $event) {
                $event->sheet->setOrientation(\PhpOffice\PhpSpreadsheet\Worksheet\PageSetup::ORIENTATION_LANDSCAPE);

                $event->sheet->styleCells(
                    'B2:G8',
                    [
                        'borders' => [
                            'outline' => [
                                'borderStyle' => \PhpOffice\PhpSpreadsheet\Style\Border::BORDER_THICK,
                                'color' => ['argb' => 'FFFF0000'],
                            ],
                        ]
                    ]
                );
            },
        ];
    }
}

在我上面的脚本中
但存在如下错误：

Method Maatwebsite\Excel\Sheet::styleCells does not exist
Method Maatwebsite\Excel\Sheet::setOrientation does not exist.
Method Maatwebsite\Excel\Writer::setCreator does not exist.

如何解决错误？