主题：代码修改问题

DataTables("成绩管理").DataRows.Clear

For Each r As Row In Tables("学籍管理").Rows

    Dim fdr As DataRow = DataTables("课程设置").Find("主考院校 = '" & r("主考院校") & "' And 专业 = '" & r("专业") & "'")

    If fdr IsNot Nothing Then

        Dim vals As List(Of String()) = DataTables("课程设置").GetValues("课程|免考课程","课程 Is Not Null And 主考院校 = '" & r("主考院校") & "' And 专业 = '" & r("专业") & "'")

        For Each val As String() In vals

            Dim nr As Row = Tables("成绩管理").AddNew

            For Each c As Col In Tables("学籍管理").Cols

                If Tables("成绩管理").Cols.Contains(c.Name) Then

                    nr(c.Name) = r(c.Name)

                End If

            Next

            nr("课程") = val(0)

            nr("免考") = val(1)

        Next

    End If

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