/**//// <summary>
        /// 合并工作表中指定行数和列数数据相同的单元格
        /// </summary>
        /// <param name="sheetIndex">工作表索引</param>
        /// <param name="beginRowIndex">开始行索引</param>
        /// <param name="beginColumnIndex">开始列索引</param>
        /// <param name="rowCount">要合并的行数</param>
        /// <param name="columnCount">要合并的列数</param>
        public void MergeWorkSheet(int sheetIndex,int beginRowIndex,int beginColumnIndex,int rowCount,int columnCount)
        {

            //检查参数
            if ( columnCount < 1 || rowCount < 1)
                return ;

            for(int col=0;col<columnCount;col++)
            {
                int mark = 0;            //标记比较数据中第一条记录位置
                int mergeCount = 1;        //相同记录数，即要合并的行数
                string text = "";
               
                for(int row=0;row<rowCount;row++)
                {
                    string prvName = "";
                    string nextName = "";

                    //最后一行不用比较
                    if( row + 1 < rowCount)       
                    {
                        for(int n=0;n<=col;n++)
                        {
                            range = (Excel.Range)workSheet.Cells[row + beginRowIndex,n + beginColumnIndex];
                            range = (Excel.Range)range.MergeArea.get_Item(1,1);
          &n