c#并行扫描端口控制台程序

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

static void Main(string[] args)       {           Console.WriteLine("请输入ip");           string ip = Console.ReadLine();           Parallel.For(1, 65535, i => scan(ip, i, 200));           Console.WriteLine("扫描完成");           }         public static void scan(string ip, int port, int timeout)       {           TcpClient tc = new TcpClient();           tc.ReceiveTimeout = timeout;           try           {               tc.Connect(ip, port);               if (tc.Connected)               {                   Console.WriteLine("Port {0} is Open", port.ToString().PadRight(6));                   Console.WriteLine("连接成功！！！");               }           }           catch           {               //Console.WriteLine("Port {0} is Closed", port.ToString().PadRight(6));           }           finally           {               tc.Close();               tc = null;             }       }