直接在主窗体中输入以下代码即可自动计算工龄：

'（文本框名称为：入职时间、工龄）

'（缺点是不自动更新，每次还需要再次点击入职时间才可以自动更新）

Private Sub 入职时间_AfterUpdate()

    Dim intMonth As Integer

    Dim strYear As String
    Dim strMonth As String
    intMonth = DateDiff("m", Me.入职时间, Date)
    strYear = IIf(intMonth \ 12 = 0, "", intMonth \ 12 & "年")
    strMonth = IIf(intMonth Mod 12 = 0, "", intMonth Mod 12 & "个月")
    Me.工龄 = strYear & IIf(strYear <> "" And strMonth <> "", "零", "") & strMonth

End Sub