当前路径：Classes/PHPExcel/Style/Border.php
<?php

/**
 * PHPExcel_Style_Border
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Style
 * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class PHPExcel_Style_Border extends PHPExcel_Style_Supervisor implements PHPExcel_IComparable
{
    /* Border style */
    const BORDER_NONE             = 'none';
    const BORDER_DASHDOT          = 'dashDot';
    const BORDER_DASHDOTDOT       = 'dashDotDot';
    const BORDER_DASHED           = 'dashed';
    const BORDER_DOTTED           = 'dotted';
    const BORDER_DOUBLE           = 'double';
    const BORDER_HAIR             = 'hair';
    const BORDER_MEDIUM           = 'medium';
    const BORDER_MEDIUMDASHDOT    = 'mediumDashDot';
    const BORDER_MEDIUMDASHDOTDOT = 'mediumDashDotDot';
    const BORDER_MEDIUMDASHED     = 'mediumDashed';
    const BORDER_SLANTDASHDOT     = 'slantDashDot';
    const BORDER_THIC...