Environment-Klasse
Stellt Informationen und Veränderungsmöglichkeiten für die aktuelle Umgebung und Plattform zur Verfügung. Diese Klasse kann nicht vererbt werden.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<ComVisibleAttribute(True)> _
Public NotInheritable Class Environment
'Usage
Auf die Member einer statischen Klassen wird direkt ohne Instanz der Klasse zugegriffen.
[ComVisibleAttribute(true)]
public static class Environment
[ComVisibleAttribute(true)]
public ref class Environment abstract sealed
/** @attribute ComVisibleAttribute(true) */
public final class Environment
ComVisibleAttribute(true)
public final class Environment
Hinweise
Verwenden Sie die Environment-Klasse, um z. B. folgende Informationen abzurufen: Befehlszeilenargumente, Exitcode, Einstellungen für Umgebungsvariablen, Inhalt der Aufrufliste, Zeit seit dem letzten Neustart des Systems und Version der Common Language Runtime.
Beispiel
' Sample for Environment class summary
Imports System
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 'Main
End Class 'Sample
'
'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
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
using namespace System;
using namespace System::Collections;
int 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 );
array<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 );
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 );
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();
IEnumerator^ myEnum = environmentVariables->GetEnumerator();
while ( myEnum->MoveNext() )
{
DictionaryEntry^ de = safe_cast<DictionaryEntry^>(myEnum->Current);
Console::WriteLine( " {0} = {1}", de->Key, de->Value );
}
Console::WriteLine( "GetFolderPath: {0}", Environment::GetFolderPath( Environment::SpecialFolder::System ) );
array<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 S"!---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
import System.*;
import System.Collections.*;
class Sample
{
public static void main(String[] args)
{
String str;
String nl = Environment.get_NewLine();
//
Console.WriteLine();
Console.WriteLine("-- Environment members --");
// Invoke this sample with an arbitrary set of command line arguments.
Console.WriteLine("CommandLine: {0}", Environment.get_CommandLine());
String arguments[] = Environment.GetCommandLineArgs();
Console.WriteLine("GetCommandLineArgs: {0}",
String.Join(", ", arguments));
// <-- Keep this information secure! -->
Console.WriteLine("CurrentDirectory: {0}",
Environment.get_CurrentDirectory());
Console.WriteLine("ExitCode: {0}", (Int32)Environment.get_ExitCode());
Console.WriteLine("HasShutdownStarted: {0}",
(System.Boolean)Environment.get_HasShutdownStarted());
// <-- Keep this information secure! -->
Console.WriteLine("MachineName: {0}", Environment.get_MachineName());
Console.WriteLine("NewLine: {0} first line{0} second line{0} "
+ "third line", Environment.get_NewLine());
Console.WriteLine("OSVersion: {0}", Environment.get_OSVersion().
ToString());
Console.WriteLine("StackTrace: '{0}'", Environment.get_StackTrace());
// <-- Keep this information secure! -->
Console.WriteLine("SystemDirectory: {0}", Environment.
get_SystemDirectory());
Console.WriteLine("TickCount: {0}", (Int32)Environment.
get_TickCount());
// <-- Keep this information secure! -->
Console.WriteLine("UserDomainName: {0}",
Environment.get_UserDomainName());
Console.WriteLine("UserInteractive: {0}",
(System.Boolean)Environment.get_UserInteractive());
// <-- Keep this information secure! -->
Console.WriteLine("UserName: {0}", Environment.get_UserName());
Console.WriteLine("Version: {0}", Environment.get_Version().
ToString());
Console.WriteLine("WorkingSet: {0}",
System.Convert.ToString(Environment.get_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();
DictionaryEntry de;
IEnumerator enumObj = environmentVariables.GetEnumerator();
while (enumObj.MoveNext()) {
de = (DictionaryEntry)enumObj.get_Current();
Console.WriteLine(" {0} = {1}", de.get_Key(), de.get_Value());
}
Console.WriteLine("GetFolderPath: {0}",
Environment.GetFolderPath(Environment.SpecialFolder.System));
String drives[] = Environment.GetLogicalDrives();
Console.WriteLine("GetLogicalDrives: {0}",
String.Join(", ", drives));
} //main
} //Sample
/*
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:\
*/
Vererbungshierarchie
System.Object
System.Environment
Threadsicherheit
Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.
Plattformen
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, Windows Mobile für Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.
Versionsinformationen
.NET Framework
Unterstützt in: 2.0, 1.1, 1.0
.NET Compact Framework
Unterstützt in: 2.0, 1.0