利用DOS中断实现显示器的定时关闭

To Realize Time Display Close-up Through Dos Interrupt

当用户一段时间不使用计算机时,可以关闭显示器,这样既可以节约电能,也可以避免不必要的辐射,但一般情况下系统只提供固定的时间,不能任意设置.通过使用DOS中断,可随意设置时间,实现显示器的定时关闭。

When the user doesn't use a computer for a period,he may close his display,which can save both power and unnecessary radiation,but the system provides only fixed time and cannot be set freely.Through DOS interruption,we can set time freely and realize timed close-up of display.