ASP 递归调用 已知节点查找根节点的函数

2018-09-06 13:10

阅读:373

  复制代码 代码如下:
Function getTreeRootId(pNodeId)
getSQL = select note_id,parent_id from [T_tree_demo] where note_id=& pNodeId &
Set getRs = db.Execute(getSQL)
If Not getRs.eof Then
If Trim(getRs(parent_id)) = 0 Then
getTreeRootId = Trim(getRs(note_id))
Exit Function
Else
getTreeRootId = getTreeRootId(Trim(getRs(parent_id)))
End If
Else
getTreeRootId = 0
Exit Function
End If
getRs.close
Set getRs = Nothing
End Function


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