vba正則拆分字符串

Option Explicit

Sub test()
    Dim i As Long
    
    For i = 2 To Sheet1.Range("A1000000").End(xlUp).Row
         Sheet1.Cells(i, 2) = GetStr(Sheet1.Cells(i, 1).Value, "^.*[a-zA-Z](?=\d)")
         Sheet1.Cells(i, 3) = GetStr(Sheet1.Cells(i, 1).Value, "\d{3}[A-Z]+$")
    
    Next
End Sub

Function GetStr(str As String, pattern As String) As String
    Dim reg As Object, mc
    Set reg = CreateObject("VBScript.RegExp")
    reg.pattern = pattern
    Set mc = reg.Execute(str)
    If mc.Count > 0 Then
        GetStr = mc.Item(0).Value
    Else
        GetStr = ""
    End If
    
End Function