private bool checkPingEnable(string _ip){bool _isEnable &＃61; false;try{Ping pingSender &＃61; new Ping();PingReply reply &＃61; pingSender.Send(_ip, 120);if (reply.Status &＃61;&＃61; IPStatus.Success){_isEnable &＃61; true;}else{_isEnable &＃61; false;}}catch (Exception){_isEnable &＃61; false;}return _isEnable;}
private bool checkPortEnable(string _ip , int _port){string ipAddress &＃61; _ip;int portNum &＃61; _port;IPAddress ip &＃61; IPAddress.Parse(ipAddress);IPEndPoint point &＃61; new IPEndPoint(ip, portNum);bool _portEnable &＃61; false;try{using (Socket sock &＃61; new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)){sock.Connect(point);sock.Close();_portEnable &＃61; true;}}catch (SocketException e){_portEnable &＃61; false;}return _portEnable;}
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