shutdown pc (using UPS power) when net cable is powerless or lost internet connection
auto shutdown when condition is satisfied below:
1.no internet under local network( real internet connection is not needed)
2.net cable has no power
edit whatever you like, but keep me updated.thanks
适用于 电脑有UPS电源，路由器直接插在外部电源
停电时路由器断电，脚本判断断电，并开始关机
随意使用，改了代码记得通知我。