/**

     * 导出

     */

    public function export(){

        $xlsData = Db('user')->select();

        Vendor('PHPExcel.PHPExcel');//调用类库,路径是基于vendor文件夹的

        Vendor('PHPExcel.PHPExcel.Worksheet.Drawing');

        Vendor('PHPExcel.PHPExcel.Writer.Excel2007');

        $objExcel = new \PHPExcel();

        //set document Property

        $objWriter = \PHPExcel_IOFactory::createWriter($objExcel, 'Excel2007');

        $objActSheet = $objExcel->getActiveSheet();

        $key = ord("A");

        $letter =explode(',',"A,B,C,D,E,F");

        $arrHeader = array('姓名','公司','职位','邮箱','状态');

        //填充表头信息

        $lenth =  count($arrHeader);

        for($i = 0;$i < $lenth;$i++) {

            $objActSheet->setCellValue("$letter[$i]1","$arrHeader[$i]");

        };

        //填充表格信息

        foreach($xlsData as $k=>$v){

            $k +=2;

            $objActSheet->setCellValue('A'.$k,$v['username']);

            $objActSheet->setCellValue('B'.$k, $v['company']);

            // // 图片生成

            // $objDrawing[$k] = new \PHPExcel_Worksheet_Drawing();

            // $objDrawing[$k]->setPath('public/static/admin/images/profile_small.jpg');

            // // 设置宽度高度

            // $objDrawing[$k]->setHeight(40);//照片高度

            // $objDrawing[$k]->setWidth(40); //照片宽度

            // /*设置图片要插入的单元格*/

            // $objDrawing[$k]->setCoordinates('C'.$k);

            // // 图片偏移距离

            // $objDrawing[$k]->setOffsetX(30);

            // $objDrawing[$k]->setOffsetY(12);

            // $objDrawing[$k]->setWorksheet($objPHPExcel->getActiveSheet());

            // 表格内容

            $objActSheet->setCellValue('C'.$k, $v['position']);

            $objActSheet->setCellValue('D'.$k, $v['email']);

            $objActSheet->setCellValue('E'.$k, $v['statuid'] == 1?'正常':'失效');

            // 表格高度

            $objActSheet->getRowDimension($k)->setRowHeight(20);

        }

        $width = array(20,20,15,10,10,30,10,15);

        //设置表格的宽度

        $objActSheet->getColumnDimension('A')->setWidth($width[5]);

        $objActSheet->getColumnDimension('B')->setWidth($width[1]);

        $objActSheet->getColumnDimension('C')->setWidth($width[0]);

        $objActSheet->getColumnDimension('D')->setWidth($width[5]);

        $objActSheet->getColumnDimension('E')->setWidth($width[5]);

        $outfile = "人员表.xls";

        ob_end_clean();

        header("Content-Type: application/force-download");

        header("Content-Type: application/octet-stream");

        header("Content-Type: application/download");

        header('Content-Disposition:inline;filename="'.$outfile.'"');

        header("Content-Transfer-Encoding: binary");

        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");

        header("Pragma: no-cache");

        $objWriter->save('php://output');

    }