Environment Classe

Definição

public ref class Environment abstract sealed

public ref class Environment sealed

public static class Environment

public sealed class Environment

[System.Runtime.InteropServices.ComVisible(true)]
public static class Environment

type Environment = class

[<System.Runtime.InteropServices.ComVisible(true)>]
type Environment = class

Public Class Environment

Public NotInheritable Class Environment

Herança

Object

Environment

Atributos

ComVisibleAttribute

Exemplos

O exemplo seguinte apresenta uma lista de informações sobre o ambiente atual.

// Sample for Environment class summary
using System;
using System.Collections;

class Sample
{
    public static void Main()
    {
        string str;
        string nl = Environment.NewLine;
        //
        Console.WriteLine();
        Console.WriteLine("-- Environment members --");

        //  Invoke this sample with an arbitrary set of command line arguments.
        Console.WriteLine("CommandLine: {0}", Environment.CommandLine);

        string[] arguments = Environment.GetCommandLineArgs();
        Console.WriteLine("GetCommandLineArgs: {0}", String.Join(", ", arguments));

        //  <-- Keep this information secure! -->
        Console.WriteLine("CurrentDirectory: {0}", Environment.CurrentDirectory);

        Console.WriteLine("ExitCode: {0}", Environment.ExitCode);

        Console.WriteLine("HasShutdownStarted: {0}", Environment.HasShutdownStarted);

        //  <-- Keep this information secure! -->
        Console.WriteLine("MachineName: {0}", Environment.MachineName);

        Console.WriteLine("NewLine: {0}  first line{0}  second line{0}  third line",
                              Environment.NewLine);

        Console.WriteLine("OSVersion: {0}", Environment.OSVersion.ToString());

        Console.WriteLine("StackTrace: '{0}'", Environment.StackTrace);

        //  <-- Keep this information secure! -->
        Console.WriteLine("SystemDirectory: {0}", Environment.SystemDirectory);

        Console.WriteLine("TickCount: {0}", Environment.TickCount);

        //  <-- Keep this information secure! -->
        Console.WriteLine("UserDomainName: {0}", Environment.UserDomainName);

        Console.WriteLine("UserInteractive: {0}", Environment.UserInteractive);

        //  <-- Keep this information secure! -->
        Console.WriteLine("UserName: {0}", Environment.UserName);

        Console.WriteLine("Version: {0}", Environment.Version.ToString());

        Console.WriteLine("WorkingSet: {0}", Environment.WorkingSet);

        //  No example for Exit(exitCode) because doing so would terminate this example.

        //  <-- Keep this information secure! -->
        string query = "My system drive is %SystemDrive% and my system root is %SystemRoot%";
        str = Environment.ExpandEnvironmentVariables(query);
        Console.WriteLine("ExpandEnvironmentVariables: {0}  {1}", nl, str);

        Console.WriteLine("GetEnvironmentVariable: {0}  My temporary directory is {1}.", nl,
                               Environment.GetEnvironmentVariable("TEMP"));

        Console.WriteLine("GetEnvironmentVariables: ");
        IDictionary environmentVariables = Environment.GetEnvironmentVariables();
        foreach (DictionaryEntry de in environmentVariables)
        {
            Console.WriteLine("  {0} = {1}", de.Key, de.Value);
        }

        Console.WriteLine("GetFolderPath: {0}",
                     Environment.GetFolderPath(Environment.SpecialFolder.System));

        string[] drives = Environment.GetLogicalDrives();
        Console.WriteLine("GetLogicalDrives: {0}", String.Join(", ", drives));
    }
}
/*
This example produces results similar to the following:
(Any result that is lengthy or reveals information that should remain
secure has been omitted and marked "!---OMITTED---!".)

C:\>env0 ARBITRARY TEXT

-- Environment members --
CommandLine: env0 ARBITRARY TEXT
GetCommandLineArgs: env0, ARBITRARY, TEXT
CurrentDirectory: C:\Documents and Settings\!---OMITTED---!
ExitCode: 0
HasShutdownStarted: False
MachineName: !---OMITTED---!
NewLine:
  first line
  second line
  third line
OSVersion: Microsoft Windows NT 5.1.2600.0
StackTrace: '   at System.Environment.GetStackTrace(Exception e)
   at System.Environment.GetStackTrace(Exception e)
   at System.Environment.get_StackTrace()
   at Sample.Main()'
SystemDirectory: C:\WINNT\System32
TickCount: 17995355
UserDomainName: !---OMITTED---!
UserInteractive: True
UserName: !---OMITTED---!
Version: !---OMITTED---!
WorkingSet: 5038080
ExpandEnvironmentVariables:
  My system drive is C: and my system root is C:\WINNT
GetEnvironmentVariable:
  My temporary directory is C:\DOCUME~1\!---OMITTED---!\LOCALS~1\Temp.
GetEnvironmentVariables:
  !---OMITTED---!
GetFolderPath: C:\WINNT\System32
GetLogicalDrives: A:\, C:\, D:\

*/

// Sample for Environment class summary
open System
open System.Collections

let nl = Environment.NewLine

printfn ""
printfn "-- Environment members --"

//  Invoke this sample with an arbitrary set of command line arguments.
printfn $"CommandLine: {Environment.CommandLine}"

Environment.GetCommandLineArgs()
|> String.concat ", "
|> printfn "GetCommandLineArgs: %s"

//  <-- Keep this information secure! -->
printfn $"CurrentDirectory: {Environment.CurrentDirectory}"

printfn $"ExitCode: {Environment.ExitCode}"

printfn $"HasShutdownStarted: {Environment.HasShutdownStarted}"

//  <-- Keep this information secure! -->
printfn $"MachineName: {Environment.MachineName}"

printfn $"NewLine: {nl}  first line{nl}  second line{nl}  third line"

printfn $"OSVersion: {Environment.OSVersion}"

printfn $"StackTrace: '{Environment.StackTrace}'"

//  <-- Keep this information secure! -->
printfn $"SystemDirectory: {Environment.SystemDirectory}"

printfn $"TickCount: {Environment.TickCount}"

//  <-- Keep this information secure! -->
printfn $"UserDomainName: {Environment.UserDomainName}"

printfn $"UserInteractive: {Environment.UserInteractive}"

//  <-- Keep this information secure! -->
printfn $"UserName: {Environment.UserName}"

printfn $"Version: {Environment.Version}"

printfn $"WorkingSet: {Environment.WorkingSet}"

//  No example for Exit(exitCode) because doing so would terminate this example.

//  <-- Keep this information secure! -->
let query = "My system drive is %SystemDrive% and my system root is %SystemRoot%"
let str = Environment.ExpandEnvironmentVariables query
printfn $"ExpandEnvironmentVariables: {nl}  {str}"

printfn $"""GetEnvironmentVariable: {nl}  My temporary directory is {Environment.GetEnvironmentVariable "TEMP"}."""

printfn "GetEnvironmentVariables: "
let environmentVariables = Environment.GetEnvironmentVariables()
for de in environmentVariables do
    let de = de :?> DictionaryEntry
    printfn $"  {de.Key} = {de.Value}"

printfn $"GetFolderPath: {Environment.GetFolderPath Environment.SpecialFolder.System}"

Environment.GetLogicalDrives()
|> String.concat ", "
|> printfn "GetLogicalDrives: %s"

// This example produces results similar to the following:
//     (Any result that is lengthy or reveals information that should remain
//     secure has been omitted and marked "!---OMITTED---!".)
//     
//     C:\>env0 ARBITRARY TEXT
//     
//     -- Environment members --
//     CommandLine: env0 ARBITRARY TEXT
//     GetCommandLineArgs: env0, ARBITRARY, TEXT
//     CurrentDirectory: C:\Documents and Settings\!---OMITTED---!
//     ExitCode: 0
//     HasShutdownStarted: False
//     MachineName: !---OMITTED---!
//     NewLine:
//       first line
//       second line
//       third line
//     OSVersion: Microsoft Windows NT 5.1.2600.0
//     StackTrace: '   at System.Environment.GetStackTrace(Exception e)
//        at System.Environment.GetStackTrace(Exception e)
//        at System.Environment.get_StackTrace()
//        at Sample.Main()'
//     SystemDirectory: C:\WINNT\System32
//     TickCount: 17995355
//     UserDomainName: !---OMITTED---!
//     UserInteractive: True
//     UserName: !---OMITTED---!
//     Version: !---OMITTED---!
//     WorkingSet: 5038080
//     ExpandEnvironmentVariables:
//       My system drive is C: and my system root is C:\WINNT
//     GetEnvironmentVariable:
//       My temporary directory is C:\DOCUME~1\!---OMITTED---!\LOCALS~1\Temp.
//     GetEnvironmentVariables:
//       !---OMITTED---!
//     GetFolderPath: C:\WINNT\System32
//     GetLogicalDrives: A:\, C:\, D:\

' Sample for Environment class summary
Imports System.Collections

Class Sample
   Public Shared Sub Main()
      Dim str As [String]
      Dim nl As [String] = Environment.NewLine
      '
      Console.WriteLine()
      Console.WriteLine("-- Environment members --")
      
      '  Invoke this sample with an arbitrary set of command line arguments.
      Console.WriteLine("CommandLine: {0}", Environment.CommandLine)
      
      Dim arguments As [String]() = Environment.GetCommandLineArgs()
      Console.WriteLine("GetCommandLineArgs: {0}", [String].Join(", ", arguments))
      
      '  <-- Keep this information secure! -->
      Console.WriteLine("CurrentDirectory: {0}", Environment.CurrentDirectory)
      
      Console.WriteLine("ExitCode: {0}", Environment.ExitCode)
      
      Console.WriteLine("HasShutdownStarted: {0}", Environment.HasShutdownStarted)
      
      '  <-- Keep this information secure! -->
      Console.WriteLine("MachineName: {0}", Environment.MachineName)
      
      Console.WriteLine("NewLine: {0}  first line{0}  second line{0}" & _
                        "  third line", Environment.NewLine)
      
      Console.WriteLine("OSVersion: {0}", Environment.OSVersion.ToString())
      
      Console.WriteLine("StackTrace: '{0}'", Environment.StackTrace)
      
      '  <-- Keep this information secure! -->
      Console.WriteLine("SystemDirectory: {0}", Environment.SystemDirectory)
      
      Console.WriteLine("TickCount: {0}", Environment.TickCount)
      
      '  <-- Keep this information secure! -->
      Console.WriteLine("UserDomainName: {0}", Environment.UserDomainName)
      
      Console.WriteLine("UserInteractive: {0}", Environment.UserInteractive)
      
      '  <-- Keep this information secure! -->
      Console.WriteLine("UserName: {0}", Environment.UserName)
      
      Console.WriteLine("Version: {0}", Environment.Version.ToString())
      
      Console.WriteLine("WorkingSet: {0}", Environment.WorkingSet)
      
      '  No example for Exit(exitCode) because doing so would terminate this example.

      '  <-- Keep this information secure! -->
      Dim query As [String] = "My system drive is %SystemDrive% and my" & _
                              " system root is %SystemRoot%"
      str = Environment.ExpandEnvironmentVariables(query)
      Console.WriteLine("ExpandEnvironmentVariables: {0}  {1}", nl, str)
      
      Console.WriteLine("GetEnvironmentVariable: {0}  My temporary directory is {1}.", _
                        nl, Environment.GetEnvironmentVariable("TEMP"))
      
      Console.WriteLine("GetEnvironmentVariables: ")
      Dim environmentVariables As IDictionary = Environment.GetEnvironmentVariables()
      Dim de As DictionaryEntry
      For Each de In environmentVariables
         Console.WriteLine("  {0} = {1}", de.Key, de.Value)
      Next de
      
      Console.WriteLine("GetFolderPath: {0}", _
              Environment.GetFolderPath(Environment.SpecialFolder.System))
      
      Dim drives As [String]() = Environment.GetLogicalDrives()
      Console.WriteLine("GetLogicalDrives: {0}", [String].Join(", ", drives))
   End Sub
End Class
'
'This example produces results similar to the following:
'(Any result that is lengthy or reveals information that should remain 
'secure has been omitted and marked "!---OMITTED---!".)
'
'C:\>env0 ARBITRARY TEXT
'
'-- Environment members --
'CommandLine: env0 ARBITRARY TEXT
'GetCommandLineArgs: env0, ARBITRARY, TEXT
'CurrentDirectory: C:\Documents and Settings\!---OMITTED---!
'ExitCode: 0
'HasShutdownStarted: False
'MachineName: !---OMITTED---!
'NewLine:
'  first line
'  second line
'  third line
'OSVersion: Microsoft Windows NT 5.1.2600.0
'StackTrace: '   at System.Environment.GetStackTrace(Exception e)
'   at System.Environment.GetStackTrace(Exception e)
'   at System.Environment.get_StackTrace()
'   at Sample.Main()'
'SystemDirectory: C:\WINNT\System32
'TickCount: 17995355
'UserDomainName: !---OMITTED---!
'UserInteractive: True
'UserName: !---OMITTED---!
'Version: !---OMITTED---!
'WorkingSet: 5038080
'ExpandEnvironmentVariables:
'  My system drive is C: and my system root is C:\WINNT
'GetEnvironmentVariable:
'  My temporary directory is C:\DOCUME~1\!---OMITTED---!\LOCALS~1\Temp.
'GetEnvironmentVariables: 
'  !---OMITTED---!
'GetFolderPath: C:\WINNT\System32
'GetLogicalDrives: A:\, C:\, D:\
'

Observações

Use a Environment classe para recuperar informações como argumentos de linha de comandos, o código de saída, definições das variáveis de ambiente, conteúdo da pilha de chamadas, tempo desde o último arranque do sistema e a versão do runtime da linguagem comum.