using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Net;
using?System.Net.Sockets;
using?System.Text.Regularexpressions;
using?System.Net.Security;

namespace?PortScan
{
????class?Program
????{
????????static?void?Main（string[]?args）
????????{
????????????string?server?=?null;
????????????bool?isConnected?=?true;
????????????int?scanPort?=?0;
????????????int?scanPortFrom?=?0;
????????????int?scanPortTo?=?0;

????????????if?（args.Length?????????????{
????????????????//?Get?Local?Server
????????????????Console.WriteLine（“Usage:??????PortScan??Hostname?scanport“）;
????????????????Console.WriteLine（“Usage:??????PortScan??Hostname?FromPort?EndPort“）;
????????????????return;
????????????}
????????????else
????????????{
????????????????server?=?args[0];
????????????????//Console.WriteLine（“Testing?Remote?host:?“?+?args[0]）;
????????????}
????????????//scanPort=Convert.ToInt32（args[1]）;???///convert?string?to?int?have?2?methods



????????????IPHostEntry?heserver?=?Dns.GetHostEntry（server）;
????????????//Only?do?the?First?IP?address
????????????//Console.WriteLine（heserver.AddressList[0].ToString（））;//print?the?IP
????????????//Console.WriteLine（heserver.AddressList[0]）;//print?the?IP?2nd?method
????????????Console.WriteLine（server+“<==>“+heserver.AddressList[0]）;
????????????IPAddress?remoteHost?=?heserver.AddressList[0];

????????????if?（args?.Length==?2）??//Scan?1?port
????????????{

????????????????isConnected?=?true;
????????????????scanPort?=?int.Parse（args[1]）;
????????????????Socket?localSocket?=?new?Socket（remoteHost.AddressFamily?SocketType.Stream?ProtocolType.Tcp）;??//.AddressFamily.maybe?ipv4?maybe?ipv6
????????????????IPEndPoint?iep?=?new?IPEndPoint（remoteHost?scanPort）;
????????????????try
????????????????{
????????????????????localSocket.Connect（iep）;
????????????????}
????????????????catch?（SocketException?sex）
????????????????{
????????????????????//Console.WriteLine（sex.Message）;//print?Error?Info
????????????????????isConnected?=?false;
????????????????}
????????????????if?（isConnected?==?true）
????????????????????Console.WriteLine（“Port??“?+?scanPort?+?“?is?open“）;
????????????????else
????????????????????Console.WriteLine（“Port??“?+?scanPort?+?“?is?Close“）;
????????????????localSocket.Close（）;

????????????}

????????????if?（args.Length?==?3）??//Scan??port?in?scope
????????????{
????????????????scanPortFrom?=?int.Parse（args[1]）;
????????????????scanPortTo?=?int.Parse（args[2]）;

????????????????for（int?i=scanPortFrom;i<=scanPortTo;i++）
????????????????{
????????????????????isConnected?=?true;
????????????????????Socket?localSocket?=?new?Socket（remoteHost.AddressFamily?SocketType.Stream?ProtocolType.Tcp）;??//.AddressFamily.maybe?ipv4?maybe?ipv6
????????????????????IPEndPoint?iep?=?new?IPEndPoint（remoteHost?i）;
????????????????????try
????????????????????{
????????????????????????localSocket.Connect（i

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????.......??????5632??2012-03-06?15:13??PortScan\PortScan\bin\Debug\PortScan.exe

????.......?????13824??2012-03-06?15:13??PortScan\PortScan\bin\Debug\PortScan.pdb

????.......?????14328??2012-03-06?09:46??PortScan\PortScan\bin\Debug\PortScan.vshost.exe

????.......???????490??2007-07-21?01:33??PortScan\PortScan\bin\Debug\PortScan.vshost.exe.manifest

????.......??????5632??2012-03-06?15:15??PortScan\PortScan\bin\Release\PortScan.exe

????.......?????11776??2012-03-06?15:15??PortScan\PortScan\bin\Release\PortScan.pdb

????.......?????14328??2012-03-26?20:09??PortScan\PortScan\bin\Release\PortScan.vshost.exe

????.......???????490??2007-07-21?01:33??PortScan\PortScan\bin\Release\PortScan.vshost.exe.manifest

????.......???????288??2012-03-06?15:13??PortScan\PortScan\obj\Debug\PortScan.csproj.FileListAbsolute.txt

????.......??????5632??2012-03-06?15:13??PortScan\PortScan\obj\Debug\PortScan.exe

????.......?????13824??2012-03-06?15:13??PortScan\PortScan\obj\Debug\PortScan.pdb

?????文件????????298??2012-03-26?20:09??PortScan\PortScan\obj\Release\PortScan.csproj.FileListAbsolute.txt

????.......??????5632??2012-03-06?15:15??PortScan\PortScan\obj\Release\PortScan.exe

????.......?????11776??2012-03-06?15:15??PortScan\PortScan\obj\Release\PortScan.pdb

????.......??????2607??2012-03-06?09:58??PortScan\PortScan\PortScan.csproj

????.......??????3630??2012-03-06?15:49??PortScan\PortScan\Program.cs

????.......??????1358??2012-03-06?09:46??PortScan\PortScan\Properties\AssemblyInfo.cs

????.......???????914??2012-03-06?09:46??PortScan\PortScan.sln

????..A..H.?????14848??2012-03-26?20:09??PortScan\PortScan.suo

?????目錄??????????0??2012-03-06?09:46??PortScan\PortScan\obj\Debug\TempPE

?????目錄??????????0??2012-03-06?15:15??PortScan\PortScan\obj\Release\TempPE

?????目錄??????????0??2012-03-06?15:13??PortScan\PortScan\bin\Debug

?????目錄??????????0??2012-03-06?15:15??PortScan\PortScan\bin\Release

?????目錄??????????0??2012-03-06?15:13??PortScan\PortScan\obj\Debug

?????目錄??????????0??2012-03-06?15:15??PortScan\PortScan\obj\Release

?????目錄??????????0??2012-03-06?15:15??PortScan\PortScan\bin

?????目錄??????????0??2012-03-06?15:15??PortScan\PortScan\obj

?????目錄??????????0??2012-03-06?09:46??PortScan\PortScan\Properties

?????目錄??????????0??2012-03-06?15:49??PortScan\PortScan

?????目錄??????????0??2012-03-06?09:46??PortScan

............此處省略3個文件信息