当前路径：Classes/PHPExcel/Style.php
<?php

/**
 * PHPExcel_Style
 *
 * 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 extends PHPExcel_Style_Supervisor implements PHPExcel_IComparable
{
    /**
     * Font
     *
     * @var PHPExcel_Style_Font
     */
    protected $font;

    /**
     * Fill
     *
     * @var PHPExcel_Style_Fill
     */
    protected $fill;

    /**
     * Borders
     *
     * @var PHPExcel_Style_Borders
     */
    protected $borders;

    /**
     * Alignment
     *
     * @var PHPExcel_Style_Alignment
     */
    protected $alignment;

    /**
     * Number Format
     *
     * @var PHPExcel_Style_NumberFormat
     */
    protected $numberFormat;

    /**
     * Conditional styles
     *
     * @var PHPExcel_Style_Conditional[]
     */
    protected $conditionalStyles;

    /**
     * Protection
     *
     * @var PHPExcel_Style_Protection
     */
    protected $protection;

    /**
     * Index of style in collection. Only used for real style.
     *
     * @var int
     */
    protected $index;

    /**
     * Use Quote Prefix when displaying in cell editor. Only used for real style.
     *
     * @var boolean
     */
    protected $quotePrefix = false;

    /**
     * Create a new PHPExcel_Style
     *
     * @param boolean $isSupervisor Flag indicating if this is a supervisor or not
     *         Leave this value at default unless you understand exactly what
     *    its ramifications are
     * @param boolean $isConditional Flag indicating if this is a conditional style or not
     *       Leave this value at default unless you understand exactly what
     *    its ramifications are
     */
    public function __construct($isSupervisor = false, $isConditional = false)
    {
        // Supervisor?
        $this->isSupervisor = $isSupervisor;

        // Initialise values
        $this->conditionalStyles = array();
        $this->font         = new PHPExcel_Style_Font($isSupervisor, $isConditional);
        $this->fill         = new PHPExcel_Style_Fill($isSupervisor, $isConditional);
        $this->borders      = new PHPExcel_Style_Borders($isSupervisor, $isConditional);
        $this->alignment    = new PHPExcel_Style_Alignment($isSupervisor, $isConditional);
        $this->numberFormat = new PHPExcel_Style_NumberFormat($isSupervisor, $isConditional);
        $this->protection   = new PHPExcel_Style_Protection($isSupervisor, $isConditional);

        // bind parent if we are a supervisor
        if ($isSupervisor) {
            $this->font->bindParent($this);
            $this->fill->bindParent($this);
            $this->borders->bindParent($this);
            $this->alignment->bindParent($this);
            $this->numberFormat->bindParent($this);
            $this->protection->bindParent($this);
        }
    }

    /**
     * Get the shared style component for the currently active cell in currently active sheet.
     * Only used for style supervisor
     *
     * @return PHPExcel_Style
     */
    public function getSharedComponent()
    {
        $activeSheet = $this->getActiveSheet();
        $selectedCell = $this->getActiveCell(); // e.g. 'A1'

        if ($activeSheet->cellExists($selectedCell)) {
            $xfIndex = $activeSheet->getCell($selectedCell)->getXfIndex();
        } else {
            $xfIndex = 0;
        }

        return $this->parent->getCellXfByIndex($xfIndex);
    }

    /**
     * Get parent. Only used for style supervisor
     *
     * @return PHPExcel
     */
    public function getParent()
    {
        return $this->parent;
    }

    /**
     * Build style array from subcomponents
     *
     * @param array $array
     * @return array
     */
    public function getStyleArray($array)
    {
        return array('quotePrefix' => $array);
    }

    /**
     * Apply styles from array
     *
 ...