帮忙修改下代码

chenjj007

验证BOM是否无线嵌套。帮忙修改下代码，无法运行。



Option Explicit

' 用于记录已经访问过的行号，避免重复检查导致栈溢出等问题
Dim visitedRows As New Collection

Function CheckNested(ByVal currentValue As String, ByVal currentRow As Long) As Boolean
    Dim parentValue As String
    Dim foundRows As New Collection
    Dim i As Long
    Dim result As Boolean
   
    ' 将当前行号添加到已访问集合中
    visitedRows.Add currentRow, CStr(currentRow)
   
    ' 获取当前C列值对应的B列父图号
    parentValue = Application.VLookup(currentValue, Range("B:C"), 1, False)
    If IsError(parentValue) Then
        ' 如果没找到父图号，说明不会继续嵌套了，返回False
        CheckNested = False
        Exit Function
    End If
   
    ' 根据父图号在C列查找所有匹配的行号，并存入foundRows集合
    FindAllMatchingRows parentValue, foundRows
   
    ' 如果没有找到匹配的行号，说明不会继续嵌套了，返回False
    If foundRows.Count = 0 Then
        CheckNested = False
        Exit Function
    End If
   
    ' 遍历找到的行号集合，进行递归检查
    For i = 2 To foundRows.Count
        Dim targetRow As Long
        targetRow = foundRows(i)
        
        ' 如果当前行已经访问过，说明出现无限嵌套，返回True
        If visitedRows.Contains(targetRow) Then
            CheckNested = True
            Exit Function
        End If
        
        ' 递归调用，继续检查下一层
        result = CheckNested(Application.VLookup(Application.Index(Range("C:C"), targetRow), Range("B:C"), 1, False), targetRow)
        If result Then
            CheckNested = True
            Exit Function
        End If
    Next i
   
    ' 如果遍历完所有找到的行号都没有出现无限嵌套，返回False
    CheckNested = False
End Function

Sub TestNested()
    Dim lastRowC As Long
    Dim i As Long
    Dim isInfiniteLoop As Boolean
   
    lastRowC = Cells(Rows.Count, "C").End(xlUp).Row
   
    For i = 2 To lastRowC
        visitedRows.Remove
        isInfiniteLoop = CheckNested(Cells(i, "C").Value, i)
        If isInfiniteLoop Then
            MsgBox "在第 " & i & " 行开始出现无限嵌套情况。"
        End If
    Next i
    MsgBox "整体检查完毕，未发现无限嵌套情况。"
End Sub

Sub FindAllMatchingRows(ByVal searchValue As String, ByRef resultRows As Collection)
    Dim lastRowC As Long
    Dim j As Long
    lastRowC = Cells(Rows.Count, "C").End(xlUp).Row
    For j = 2 To lastRowC
        If Cells(j, "C").Value = searchValue Then
            resultRows.Add j
        End If
    Next j
End Sub

chenjj007

有没有大神帮忙看下