IPAddress.Parse Metode

Definisi

Ruang nama:

System.Net

Rakitan:

System.Net.Primitives.dll

Overload

Parse(String)	Mengonversi string alamat IP menjadi IPAddress instans.
Parse(ReadOnlySpan<Char>)	Mengonversi alamat IP yang direpresentasikan sebagai rentang karakter menjadi IPAddress instans.

Parse(String)

Sumber:

IPAddress.cs

Mengonversi string alamat IP menjadi IPAddress instans.

public:
 static System::Net::IPAddress ^ Parse(System::String ^ ipString);

public static System.Net.IPAddress Parse (string ipString);

static member Parse : string -> System.Net.IPAddress

Public Shared Function Parse (ipString As String) As IPAddress

Parameter

ipString

String

String yang berisi alamat IP dalam notasi dotted-quad untuk IPv4 dan dalam notasi heksadesimal kolon untuk IPv6.

Mengembalikan

IPAddress

Instans IPAddress .

Pengecualian

ArgumentNullException

ipStringadalah null.

FormatException

ipString bukan alamat IP yang valid.

Contoh

Kode berikut mengonversi string yang berisi alamat IP, dalam notasi dotted-quad untuk IPv4 atau dalam notasi colon-hexadesimal untuk IPv6, menjadi instans IPAddress kelas . Kemudian menggunakan metode kelebihan beban ToString untuk menampilkan alamat dalam notasi standar.

#using <System.dll>

using namespace System;
using namespace System::Net;

// This method calls the IPAddress::Parse method to check the ipAddress
// input string. If the ipAddress argument represents a syntatically correct IPv4 or
// IPv6 address, the method displays the Parse output into quad-notation or
// colon-hexadecimal notation, respectively. Otherwise, it displays an
// error message.
void parse( String^ ipAddress )
{
   try
   {
      
      // Create an instance of IPAddress for the specified address string (in
      // dotted-quad, or colon-hexadecimal notation).
      IPAddress^ address = IPAddress::Parse( ipAddress );
      
      // Display the address in standard notation.
      Console::WriteLine( "Parsing your input string: \"{0}\" produces this address (shown in its standard notation): {1}", ipAddress, address );
   }
   catch ( ArgumentNullException^ e ) 
   {
      Console::WriteLine( "ArgumentNullException caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
   catch ( FormatException^ e ) 
   {
      Console::WriteLine( "FormatException caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }

}

int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   String^ IPaddress;
   if ( args->Length == 1 )
   {
      Console::WriteLine( "Please enter an IP address." );
      Console::WriteLine( "Usage:   >cs_parse any IPv4 or IPv6 address." );
      Console::WriteLine( "Example: >cs_parse 127.0.0.1" );
      Console::WriteLine( "Example: >cs_parse 0:0:0:0:0:0:0:1" );
      return 0;
   }
   else
      IPaddress = args[ 1 ];

   
   // Get the list of the IPv6 addresses associated with the requested host.
   parse( IPaddress );
}

using System;
using System.Net;

class ParseAddress
{

  private static void Main(string[] args)
  {
    string IPaddress;

    if (args.Length == 0)
    {
      Console.WriteLine("Please enter an IP address.");
      Console.WriteLine("Usage:   >cs_parse any IPv4 or IPv6 address.");
      Console.WriteLine("Example: >cs_parse 127.0.0.1");
      Console.WriteLine("Example: >cs_parse 0:0:0:0:0:0:0:1");
      return;
    }
    else
        {
            IPaddress = args[0];
        }

        // Get the list of the IPv6 addresses associated with the requested host.
        Parse(IPaddress);
  }

  // This method calls the IPAddress.Parse method to check the ipAddress
  // input string. If the ipAddress argument represents a syntatically correct IPv4 or
  // IPv6 address, the method displays the Parse output into quad-notation or
  // colon-hexadecimal notation, respectively. Otherwise, it displays an
  // error message.
  private static void Parse(string ipAddress)
  {
    try
    {
      // Create an instance of IPAddress for the specified address string (in
      // dotted-quad, or colon-hexadecimal notation).
      IPAddress address = IPAddress.Parse(ipAddress);

      // Display the address in standard notation.
      Console.WriteLine("Parsing your input string: " + "\"" + ipAddress + "\"" + " produces this address (shown in its standard notation): "+ address.ToString());
    }

    catch(ArgumentNullException e)
    {
      Console.WriteLine("ArgumentNullException caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }

    catch(FormatException e)
    {
      Console.WriteLine("FormatException caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }

    catch(Exception e)
    {
      Console.WriteLine("Exception caught!!!");
      Console.WriteLine("Source : " + e.Source);
      Console.WriteLine("Message : " + e.Message);
    }
   }
}

Imports System.Net



Class ParseAddress
   
   'Entry point which delegates to C-style main Private Function
   Public Overloads Shared Sub Main()
      Main(System.Environment.GetCommandLineArgs())
   End Sub
   
   
   Overloads Private Shared Sub Main(args() As String)
      Dim IPaddress As String
      
      If args.Length = 1 Then
         Console.WriteLine("Please enter an IP address.")
         Console.WriteLine("Usage:   >cs_parse any IPv4 or IPv6 address.")
         Console.WriteLine("Example: >cs_parse 127.0.0.1")
         Console.WriteLine("Example: >cs_parse 0:0:0:0:0:0:0:1")
         Return
      Else
         IPaddress = args(1)
      End If 
      ' Get the list of the IPv6 addresses associated with the requested host.
      Parse(IPaddress)
   End Sub
    
   
   ' This method calls the IPAddress.Parse method to check the ipAddress 
   ' input string. If the ipAddress argument represents a syntatical correct IPv4 or
   ' IPv6 address, the method displays the Parse output into quad-notation or
   ' colon-hexadecimal notation, respectively. Otherwise, it displays an 
   ' error message.
   Private Shared Sub Parse(ipAddr As String)
      Try
         ' Create an instance of IPAddress for the specified address string (in 
         ' dotted-quad, or colon-hexadecimal notation).
         Dim address As IPAddress = IPAddress.Parse(ipAddr)
         
         ' Display the address in standard notation.
         Console.WriteLine(("Parsing your input string: " + """" + ipAddr + """" + " produces this address (shown in its standard notation): " + address.ToString()))
      
      Catch e As ArgumentNullException
         Console.WriteLine("ArgumentNullException caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      
      Catch e As FormatException
         Console.WriteLine("FormatException caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      
      Catch e As Exception
         Console.WriteLine("Exception caught!!!")
         Console.WriteLine(("Source : " + e.Source))
         Console.WriteLine(("Message : " + e.Message))
      End Try
   End Sub
End Class

Keterangan

Metode statis Parse membuat instans IPAddress dari alamat IP yang dinyatakan dalam notasi dotted-quad untuk IPv4 dan dalam notasi heksadesimal titik dua untuk IPv6.

Jumlah bagian (setiap bagian dipisahkan oleh titik) dalam ipString menentukan bagaimana alamat IP dibangun. Satu alamat bagian disimpan langsung di alamat jaringan. Alamat dua bagian, nyaman untuk menentukan alamat kelas A, menempatkan bagian terdepan dalam byte pertama dan bagian berikutnya di tiga byte paling kanan dari alamat jaringan. Alamat tiga bagian, nyaman untuk menentukan alamat kelas B, menempatkan bagian pertama dalam byte pertama, bagian kedua dalam byte kedua, dan bagian akhir di dua byte paling kanan dari alamat jaringan. Contohnya:

Jumlah bagian dan contoh ipString	Alamat IPv4 untuk IPAddress
1 -- "65535"	0.0.255.255
2 -- "20.2"	20.0.0.2
2 -- "20.65535"	20.0.255.255
3 -- "128.1.2"	128.1.0.2
4 -- "1.1.1.10"	1.1.1.10
4 -- "1.1.1.010"	1.1.1.8
1 -- "0x2F"	0.0.0.47

Parse(ReadOnlySpan<Char>)

Sumber:

IPAddress.cs

Mengonversi alamat IP yang direpresentasikan sebagai rentang karakter menjadi IPAddress instans.

public:
 static System::Net::IPAddress ^ Parse(ReadOnlySpan<char> ipSpan);

public static System.Net.IPAddress Parse (ReadOnlySpan<char> ipSpan);

static member Parse : ReadOnlySpan<char> -> System.Net.IPAddress

Public Shared Function Parse (ipSpan As ReadOnlySpan(Of Char)) As IPAddress

Parameter

ipSpan

ReadOnlySpan<Char>

Rentang karakter yang berisi alamat IP dalam notasi dotted-quad untuk IPv4 dan dalam notasi colon-hexadesimal untuk IPv6.

Mengembalikan

IPAddress

Alamat IP yang dikonversi.

Pengecualian

FormatException

ipString bukan alamat IP yang valid.