using System;using System.Collections;using System.Collections.Generic;using System.Linq;using System.Text;namespace 测试{    class Program    {        static void Main(string[] args)        {            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));            Console.ReadKey();        }    }}