Question

在我的Excel文件中，我有：

任何单元格中都可以有-分隔的任何数字范围。

在任何特定列（可能是任何单元格）中，我想要从开头删除所有文本到-连字符。

示例： 40-45 将替换为 45 。

Answer 1

以下代码将遍历所有工作表及其使用的范围（一个工作簿中所有工作表中的所有单元格）并替换由- 破折号分隔的任何文本，即{{ 1}}只有字符串的第二部分（50）

40-50

您也可以使用以下

Sub Main()
Application.ScreenUpdating = False
Application.EnableEvents = False
    Dim ws As Worksheet, ur As Range, r As Range
    For Each ws In Sheets
        Set ur = ws.UsedRange
        For Each r In ur
            On Error Resume Next
                r = Split(r, "-")(1)
        Next
    Next
Application.EnableEvents = True
Application.ScreenUpdating = True
End Sub

但在这种特殊情况下，使用第一个示例比第二个示例快约50％。

我已经用100,000个细胞进行了测试，以检查和分割

第一个结果：Sub MMain() Application.ScreenUpdating = False Application.EnableEvents = False Dim ws As Worksheet, ur As Range, r As Range For Each ws In Sheets Set ur = ws.UsedRange For Each r In ur If Not IsEmpty(r) Then If InStr(1, r.Text, "-", vbTextCompare) Then r = Split(r, "-")(1) End If End If Next Next Application.EnableEvents = True Application.ScreenUpdating = True End Sub
第二个结果：2.31 sec

Answer 2

另一种方法是使用正则表达式对替换

进行选择

此代码将提示您操作范围。

Sub Update()

Dim rng1 As Range
Dim rngArea As Range
Dim lngRow As Long
Dim lngCol As Long
Dim lngCalc As Long
Dim objReg As Object
Dim X()

On Error Resume Next
Set rng1 = Application.InputBox("Select range for the replacement of leading zeros", "User select", Selection.Address, , , , , 8)
If rng1 Is Nothing Then Exit Sub
On Error GoTo 0


Set objReg = CreateObject("vbscript.regexp")
objReg.Pattern = "\d+\-(\d+)"

'Speed up the code by turning off screenupdating and setting calculation to manual
'Disable any code events that may occur when writing to cells
With Application
    lngCalc = .Calculation
    .ScreenUpdating = False
    .Calculation = xlCalculationManual
    .EnableEvents = False
End With


'Non contiguous range areas are common when using SpecialCells to define specific cell types to work on
For Each rngArea In rng1.Areas
    'The most common outcome is used for the True outcome to optimise code speed
    If rngArea.Cells.Count > 1 Then
       'If there is more than once cell then set the variant array to the dimensions of the range area
       'Using Value2 provides a useful speed improvement over Value. On my testing it was 2% on blank cells, up to 10% on non-blanks
        X = rngArea.Value2
        For lngRow = 1 To rngArea.Rows.Count
            For lngCol = 1 To rngArea.Columns.Count
                'replace text
                X(lngRow, lngCol) = objReg.Replace(X(lngRow, lngCol), "$1")
            Next lngCol
        Next lngRow
        'Dump the updated array sans leading whitepace back over the initial range
        rngArea.Value2 = X
    Else
        'caters for a single cell range area. No variant array required
        rngArea.Value = objReg.Replace(rngArea.Value, "$1")
    End If
Next rngArea

'cleanup the Application settings
With Application
    .ScreenUpdating = True
    .Calculation = lngCalc
    .EnableEvents = True
End With

Set objReg = Nothing
End Sub

在Cell中查找并替换

2 个答案: