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Private Sub Combo1_AfterUpdate()
    Dim rst As DAO.Recordset
    Dim strTemp As String
    strTemp = "select * from 表1"
    Set rst = CurrentDb.OpenRecordset(strTemp, , dbReadOnly)
    Do Until rst.EOF
        If rst!产品名称 = Me.Combo1 Then
            MsgBox "该产品在表里为第" & rst.AbsolutePosition + 1 & "记录"
        End If
        rst.MoveNext
    Loop
    rst.Close

End Sub