data = $data; } public function array():array { $items = []; $created_at = $this->data->created_at; $scheme = $this->data->scheme; foreach ($scheme as $value){ $items[] = [ $value->id, $value->icon, $value->name, $value->unit, $value->num, $value->price, $created_at ]; } return $items; } public function headings(): array { return [ ['id','图片', '名称','单位','数量','价格','设置时间'] ]; } public function styles(Worksheet $sheet) { $sheet->getStyle('A')->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT); $sheet->getStyle('C')->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT); return [ 1 => [ 'alignment' => [ 'horizontal' => Alignment::HORIZONTAL_CENTER, ], 'font' => [ 'bold' => true, ], 'borders' => [ 'allBorders' => [ 'borderStyle' => Border::BORDER_THIN, ], ], ], ]; } public function registerEvents(): array { return [ AfterSheet::class => function (AfterSheet $event) { $event->sheet->getDelegate()->calculateColumnWidths(); }, ]; } }