主题：为何通过 wb.AddTable创建表时，再通过.Body.AddRow创建的底部合计栏金额列开始背景色不一致？

 如下代码：

        With wb.AddTable("","Table1")
            .Attribute= "border='2'"
            .RowHead = 1
            .ColWidth = "12px,120px,100px,80px,120px" '设置列宽
            .Highlight =1
            .Alternate = 2 '每两行显示一个不同背景颜色的行
            .CreateFromDataTable(DataTables("费用查询表"),True) ',"姓名","填表日期","报销金额(元)")
            Dim sum As Double = DataTables("费用查询表").compute("sum(BxJe)")

            With .Body.AddRow()
                .Attribute = "style='background-color:#F0FFFF'"
                .AddCell(" 合  计 ","colspan='4'")
                .AddCells(sum,"")
            End With
        End With

运行结果在合计栏的金额列背景色为何与前面单元不一致，如下：