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   源码介绍

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tcp半开连接扫描，扫描速度快

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using Metro;
using Metro.Scanning;

namespace WindowsFormsApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请输入要扫描的Ip地址");
            string ip = Console.ReadLine();

            Console.WriteLine("请输入要扫描的端口起始地址，用\",\"号分隔");
            string txt = Console.ReadLine();
            if (txt == null)
                return;

            args = txt.Split(',');

            ushort beginPort = ushort.Parse(args[0]);
            ushort endPort = ushort.Parse(args[1]);

            int length = endPort - beginPort;
            ushort[] ports = new ushort[length];
            for (ushort i = 0; i < length; i  )
                ports[i] = (ushort)(beginPort   i);
           
            NetworkInterfaceList list = new NetworkInterfaceList();
            foreach (NetworkInterface ls in list.Interfaces)
            {
                TcpSynScanner scanner = new TcpSynScanner(new IPEndPoint(ls.Address, 0));
                scanner.PortReply  = scanner_PortReply;
                try
                {
                    scanner.StartScan(IPAddress.Parse(ip), ports);
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
                break;
            }

            Console.ReadLine();

        }

        static void scanner_PortReply(IPEndPoint remoteEndPoint, TcpPortState state)
        {
            string txt = string.Format("{0}:{1}=>{2}", remoteEndPoint.Address, remoteEndPoint.Port, state);
            Console.WriteLine(txt);
        }

    }
}