二话不说，直接上代码。

考虑到楼主的电脑无法安装任何其他软件，那么只能用一般都有的Excel,

1.在EXCEL里，enable 开发者模式，然后加入一个按钮，然后这个按钮的代码如下：

Private Declare Function SetCursorPos Lib "user32" (ByVal x As Long, ByVal Y As Long) As Long

Private Declare Sub mouse_event Lib "user32" (ByVal dwFlags As Long, ByVal dx As Long, ByVal dy As Long, ByVal cButtons As Long, ByVal dwExtraInfo As Long)

Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Private Const MOUSEEVENTF_LEFTDOWN = &H2

Private Const MOUSEEVENTF_LEFTUP = &H4

Private working As Boolean

Sub keep_screen_live_Click()

  Set working = True

  Do While working

    Call ClickMyScreen

    MsgBox "clicking"

    Sleep 60000

  Loop

End Sub

Private Sub ClickMyScreen()

  mouse_event MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0

  Sleep 50

  mouse_event MOUSEEVENTF_LEFTUP, 0, 0, 0, 0

  Sleep 100

End Sub

然后保存成 macro的excel,点击开始按钮，就会自动60秒点一次屏幕了。