主题：[求助]treeview的代码求助!(自己解决了)

字符列，要加上单引号

       Case 3
            nd.Text = nd.text & "("& dt.Compute("Sum(数量)","年 = " & Year & " And 月 = " & Month & " And 产品名称='" & Product & "'") & "公斤)"
        Case 4
            nd.Text = nd.text & "("& dt.Compute("Sum(数量)","年 = " & Year & " And 月 = " & Month & " And 产品名称='" & Product & "' And 规格或牌号='" & Style & "'") & "公斤)"