<"最大列：$highestColumn";
echo "最大行：$highestRow";
echo '<hr/>';
$cell = function ($cell) use ($activeSheet) {
  return $activeSheet->getCell("$cell")->getValue();
};
$str1 = $cell('A13');
echo $str1;
exit;

//--------------------------------导出excel文件--------------------------------
require_once './Classes/PHPExcel.php';
$objPHPExcel=new PHPExcel();
//一些关于excel文件的描述。在Classes/PHPExcel/DocumentProperties.php中有更多选项
$prop = $objPHPExcel->getProperties();
$prop->setCreator('sweat_xiaoMa');
$prop->setLastModifiedBy('xiaoma');
$prop->setTitle('Office 2007 XLSX Document');
$prop->setSubject('Office 2007 XLSX Document');
$prop->setDescription('Document for Office 2007 XLSX, generated using PHP classes.');
$prop->setKeywords('office 2007 openxml php');
$prop->setCategory('Result file');
//设置使用的当前的工作表的索引
$objPHPExcel->setActiveSheetIndex(0);
//然后就可以设置单元格上的内容了。
$activeSheet = $objPHPExcel->getActiveSheet();
$activeSheet->setCellValue('A1','学号');
$activeSheet->setCellValue('B1','年级');
$activeSheet->setCellValue('C1','班级');
$activeSheet->setCellValue('D1','姓名');
$activeSheet->setCellValue('E1','性别');
//给当前使用的工作表设置标题。
$activeSheet->setTitle('工作表1啦啦啦');
//文件名字。下面的header中用到。
$filename = '学生信息统计表_'.date('Y-m-dHis');
/*
*生成xlsx文件
*/
// header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
// header('Content-Disposition: attachment;filename="'.$filename.'.xlsx"');
// header('Cache-Control: max-age=0');
// $objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');
/*
*生成xls文件
*/
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="'.$filename.'.xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
exit;