asp.net實現檢測電腦是否連網api程式

代碼如下

複製代碼

::Wininet := ..raw.loadDll("Wininet.dll")  ::InternetGetConnectedState = Wininet.api("InternetGetConnectedState","bool(int &flag,int reserved )" )   isOnline = function(){     return InternetGetConnectedState(0,0);  }   io.open() io.print( isOnline() ) using System.Runtime.InteropServices; class inet {     [DllImport("wininet.dll")]     extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);     public bool isOnline()     {         int flag = 0;         bool state = InternetGetConnectedState(out flag, 0);         return state;     } }