Aspose Excel 单元格合并后边框显示不全

        /// <summary>
        /// 解决合并后的单元格没有边框,设置合并单元格格式,让合并过的单元格中每一个单元格上都添加上加边框的样式
        /// </summary>
        /// <param name="cells">单元格</param>
        /// <param name="firstRow">起始行</param>
        /// <param name="firstColumn">起始列</param>
        /// <param name="rowNumber">行偏移量</param>
        /// <param name="columnNumber">列偏移量</param>
        /// <param name="style">样式</param>
        private void SetCellStyle(Cells cells, int firstRow, int firstColumn, int rowNumber, int columnNumber, Style style)
        {
            int totalRow = firstRow + rowNumber;
            int totalColumn = firstColumn + columnNumber;
            for (int i = firstRow; i < totalRow; i++)
            {
                for (int j = firstColumn; j < totalColumn; j++)
                {
                    cells[i, j].Style = style;
                }
            }
        }