Private Sub Worksheet_Activate( ) If Application.InputBox(″请输入操作权限密码:″) = 123 Then Range(″A1″).Select Sheets(″机密文档″).Cells.Font.ColorIndex = 56 Else MsgBox ″密码错误,即将退出!″ Sheets(″普通文档″).Select End If End Sub Private Sub Worksheet_Deactivate( ) Sheets(″机密文档″).Cells.Font.ColorIndex = 2 End Sub