获取dictionary 值连续相同的索引，

            for (int i = ; i < ;)
            {
                var cell = table2[, i];

                var rangType = companyScheme[i];
                string txtCell = "";
                switch (rangType)
                {
                    case : txtCell = "尖"; break;
                    case : txtCell = "峰"; break;
                    case : txtCell = "平"; break;
                    case : txtCell = "谷"; break;
                }
                cell.AddParagraph().AppendText(txtCell);

                int end = DD(i, companyScheme);
                table2.ApplyHorizontalMerge(, i, end);
                i += end - i + ;
            }

public static int DD(int i, Dictionary<int, int> companyScheme)
{
if(i == )
{
return ;
}

if(companyScheme[i]== companyScheme[i + ])
{
return DD( i +, companyScheme);
}
else
{
return i;
}
}