合并单元格

       int sheetMergeCount = workSheet.GetSelectedRanges().Count;
            List<int> rangeIndexList = new List<int>();
            int rowIndex =0;
            for (int i = 0; i < sheetMergeCount;  i++)
            {
               Range range = (Range)workSheet.GetSelectedRanges()[i];
                if (range.RowCount == 0)
                    continue;
                for (int r = 0; r < range.RowCount; r++)
                {
                    rowIndex = range.FirstRow - 1;
                    rangeIndexList.Add(rowIndex + r);
                }
            }

C# 获取已合并的单元格，并获取合并的行数