PHPExcel 设置表格边框

//设置单元格边框
$style_array = array(
'borders' => array(
'allborders' => array(
'style' => \PHPExcel_Style_Border::BORDER_THIN
)
) );
$objPHPExcel->getActiveSheet()->getStyle('A1:'.$E.$countData)->applyFromArray($style_array);