public static void 小计(DataGridView ucgrd, string col)
        {
            for (int i = 0; i < ucgrd.Columns.Count; i++)
            {
                ucgrd.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable;
            }

            //清除grd背景色
            for (int ii = 0; ii < ucgrd.Rows.Count; ii++)
            {
                ucgrd.Rows[ii].DefaultCellStyle.BackColor = Color.White;
            }

            //总计
            string[] str小计 = clsString.Split空格(col);

            ucgrd.RowCount = ucgrd.RowCount + 1;

            //在ucgrd.RowCount-1行插入总计行
            for (int i = 0; i < str小计.Length - 1; i++)
            {
                int 列 = clsC.Cint(str小计[i]);
                //遍历整个表,相加得总计和
                for (int 行 = 0; 行 < ucgrd.RowCount - 1; 行++)
                {
                    double 数量1 = 0, 数量2 = 0;
                    if (ucgrd.Rows[ucgrd.RowCount - 1].Cells[列].Value != null)
                    {
                        数量1 = clsC.Cdbl(ucgrd.Rows[ucgrd.RowCount - 1].Cells[列].Value.ToString());
                    }
                    if (ucgrd.Rows[行].Cells[列].Value != null)
                    {
                        数量2 = clsC.Cdbl(ucgrd.Rows[行].Cells[列].Value.ToString());
                    }
                    ucgrd.Rows[ucgrd.RowCount - 1].Cells[列].Value = 数量1 + 数量2;
                }
            }

            ucgrd.Rows[ucgrd.RowCount - 1].Cells[0].Value = "";
            ucgrd.Rows[ucgrd.RowCount - 1].Cells[1].Value = "总计";

            //颜色
            ucgrd.Rows[ucgrd.RowCount - 1].DefaultCellStyle.BackColor = Color.YellowGreen;

            //小计
            int 汇总位, J = 0;
            汇总位 = 0;

            while (1 == 1)
            {
                //如果到了列表的末尾，就不要小计了
                if (J == ucgrd.RowCount - 1)
                {
                    break;
                }

                //判断小计是否一类
                if (ucgrd.Rows[J + 1].Cells[0].Value != null && ucgrd.Rows[J].Cells[0].Value != null)
                {
                    //不相等就执行,否则跳过,直到同一类的完再执行小计
                    if (!ucgrd.Rows[J].Cells[0].Value.ToString().Equals(ucgrd.Rows[J + 1].Cells[0].Value.ToString()))
                    {
                        ucgrd.Rows.Insert(J + 1);

                        for (int i = 0; i < str小计.Length - 1; i++)
                        {
                            int 列 = clsC.Cint(str小计[i]);
                            for (int 行 = 汇总位; 行 < J + 1; 行++)
                            {
                                double 数量3 = 0, 数量4 = 0;
                                if (ucgrd.Rows[行].Cells[列].Value != null)
                                {
                                    数量3 = clsC.Cdbl(ucgrd.Rows[行].Cells[列].Value.ToString());
                                }
                                if (ucgrd.Rows[J + 1].Cells[列].Value != null)
                                {
                                    数量4 = clsC.Cdbl(ucgrd.Rows[J + 1].Cells[列].Value.ToString());
                                }
                                ucgrd.Rows[J + 1].Cells[列].Value = 数量3 + 数量4;
                            }
                        }

                        ucgrd.Rows[J + 1].Cells[0].Value = "";
                        ucgrd.Rows[J + 1].Cells[1].Value = "小计";

                        //颜色
                        //ucgrd.Rows[J + 1].DefaultCellStyle.BackColor = Color.Cyan; 
                        ucgrd.Rows[J + 1].DefaultCellStyle.BackColor = Color.PaleGoldenrod;

                        汇总位 = J + 2;
                        J = J + 1;          //跳一行小计的那一行就不比较了
                    }
                }
                J = J + 1;
            }
        }