主题：[求助]怎样改动代码使其能在第二个表格中按要求运行

Dim ary() As String = {"卷1答", "卷2答"}
Dim xswpdr As DataRow = DataTables("学生问题频度").find("学号 = '" & e.DataRow("学号") & "'")
If xswpdr IsNot Nothing Then
    xswpdr("知1") = 0
    xswpdr("知2") = 0
    xswpdr("知3") = 0
    xswpdr("知4") = 0
   
    For Each str As String In ary
        Dim kmdr As DataRow = DataTables("客观问题描述").find("试卷号= '" & DataTables(str).Name.chars(1) & "'")
        Dim zmdr As DataRow = DataTables("主观问题描述").find("试卷号= '" & DataTables(str).Name.chars(1) & "'")
        Dim kfdr As DataRow = DataTables("客观题答案").find("试卷号 = '" & DataTables(str).Name.chars(1) & "'" )
        For Each dr As DataRow In DataTables(str).DataRows
            Dim t1 As String = e.DataRow("客观题1")
            Dim d1 As String = kfdr("客观题1")
            Dim t2 As String = e.DataRow("客观题2")
            Dim d2 As String = kfdr("客观题2")
            Dim t3 As String = e.DataRow("客观题3")
            Dim d3 As String = kfdr("客观题3")
           
            If t1 > "" AndAlso t2 > "" AndAlso t3 > "" Then
                Dim ts() As String = {t1, t2, t3}
                Dim ds() As String = {d1, d2, d3}
                For i As Integer = 0 To ts.length-1
                    For Each s As String In ts(i)
                        If ds(i).Contains(s) = False Then
                            Select Case kmdr("题" & i + 1 & s.ToUpper() & "范")
                                Case "知1"
                                    xswpdr("知1") = xswpdr("知1") + 1
                                Case "知2"
                                    xswpdr("知2") = xswpdr("知2") +  1
                                Case "知3"
                                    xswpdr("知3") = xswpdr("知3") +  1
                                Case "知4"
                                    xswpdr("知4") = xswpdr("知4") +  1
                            End Select
                        End If
                    Next
                Next
                For i As Integer = 0 To ts.length-1
                    For Each s As String In ds(i)
                        If ts(i).Contains(s) = False Then
                            Select Case kmdr("题" & i + 1 & s.ToUpper() & "范")
                                Case "知1"
                                    xswpdr("知1") = xswpdr("知1") + 1
                                Case "知2"
                                    xswpdr("知2") = xswpdr("知2") +  1
                                Case "知3"
                                    xswpdr("知3") = xswpdr("知3") +  1
                                Case "知4"
                                    xswpdr("知4") = xswpdr("知4") +  1
                            End Select
                        End If
                    Next
                Next
            End If
            For i As Integer = 1 To 7
                If e.DataRow("主观题" & i ) = "f" Then
                    Select Case zmdr("题" & i & "范")
                        Case "知1"
                            xswpdr("知1") = xswpdr("知1") + 1
                        Case "知2"
                            xswpdr("知2") = xswpdr("知2") +  1
                        Case "知3"
                            xswpdr("知3") = xswpdr("知3") +  1
                        Case "知4"
                            xswpdr("知4") = xswpdr("知4") +  1
                    End Select
                End If
            Next
        Next
    Next
End If