public function exportExcel(){ Excel::create('订单统计'.date('Y-m-d H_i_s'), function ($excel) {$excel->sheet('order', function ($sheet) {$data = Orders::where('type',2)->orderby('id','desc')->get(); //要用get()$sheet->appendRow(['老师姓名','联系方式','老师性别']);//这里是表头的名称foreach($data as $o){ //appendRow是导出一行，要导出数据表就要循环这个$sheet->appendRow([$o->teacher_name,(string)$o->teacher_mobile,$o->teacher_sex]);//进行循环}});})->download('csv');}
