IPAddress.Parse Metod

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

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

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

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

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

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

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

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

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

Parametrar

Returer

Den konverterade IP-adressen.

Undantag

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

Källa:

IPAddress.cs

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

Parametrar

Returer

En IPAddress instans.

Undantag

Exempel

Följande kod konverterar en sträng som innehåller en IP-adress, i streckad quad-notation för IPv4 eller i colon-hexadecimal notation för IPv6, till en instans av IPAddress klassen. Sedan används den överlagrade ToString metoden för att visa adressen i standard notation.

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

Kommentarer

Den statiska Parse metoden skapar en IPAddress instans från en IP-adress uttryckt i streckad quad-notation för IPv4 och i colon-hexadecimal notation för IPv6.

Antalet delar (varje del avgränsas med en period) i ipString avgör hur IP-adressen konstrueras. En endelsadress lagras direkt i nätverksadressen. En adress i två delar, som är lämplig för att ange en klass A-adress, placerar den inledande delen i den första byte-delen och den avslutande delen i de tre byteen till höger i nätverksadressen. En adress i tre delar, som är lämplig för att ange en klass B-adress, placerar den första delen i första bytet, den andra delen i andra bytet och den sista delen i de två byte som är högst till höger för nätverksadressen. Ett exempel:

Källa:

IPAddress.cs

Källa:

IPAddress.cs

public:
 static System::Net::IPAddress ^ Parse(ReadOnlySpan<System::Byte> utf8Text);

public static System.Net.IPAddress Parse(ReadOnlySpan<byte> utf8Text);

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

Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte)) As IPAddress

Parametrar

Returer

Resultatet av parsning utf8Text.