使用vbscript创建稀疏矩阵

Question

假设我有一个数组= {A，B，Y，X}。现在我有一张Excel工作表，它可以有动态的列数和Rows.Say如下例所示：

的输入 的

ColA   ColB   ColC  ....

 T      P      Y    ....
 C      Y      D    ....
 B      A      M    ....
 Z      R      X    ....

的输出： 的

ColA   ColB   ColC  ....

 -      -      Y    ....
 -      Y      -    ....
 B      A      -    ....
 -      -      X    ....

如果所有列都只有Array值，如果找到任何其他值，则需要将它们替换为 “ - ”

除了相对慢的循环技术外，使用VBscript还有更快的过程吗？

谢谢，

Answer 1

Sub Macro1()

    Dim arr, i, rng As Range

    arr = Array("X", "Y", "Z")
    Set rng = ActiveSheet.Range("A1").CurrentRegion

    With Application
        .ScreenUpdating = False
        .Calculation = xlCalculationManual
    End With

    For i = LBound(arr) To UBound(arr)
        rng.Replace What:=arr(i), Replacement:="-", LookAt:=xlWhole, _
            SearchOrder:=xlByRows, MatchCase:=True, SearchFormat:=False, _
            ReplaceFormat:=False
    Next i

    With Application
        .ScreenUpdating = True
        .Calculation = xlCalculationAutomatic
    End With

End Sub

修改

Sub KeepValues()

    Dim arr, arrVals, i, rng As Range, r, c
    Dim keepval As Boolean

    arr = Array("X", "Y", "Z")

    Set rng = ActiveSheet.Range("A1").CurrentRegion
    arrVals = rng.Value

    For r = 1 To UBound(arrVals, 1)
        For c = 1 To UBound(arrVals, 2)
            keepval = False
            For i = LBound(arr) To UBound(arr)
                If arr(i) = arrVals(r, c) Then
                    keepval = True
                    Exit For
                End If
            Next i
            If Not keepval Then arrVals(r, c) = ""
        Next c
    Next r

    rng.Value = arrVals

End Sub