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访问java1.5环境变量访问java1.5环境变量如：复制代码代码如下:publicclassEnvTest{publicstaticvoidmain(Stringargs[]){System.out.println(System.getenv(args[0]));}}运行结果：C:java>javaEnvTestOSWindows_NT又如：复制代码代码如下:importjava.util.Map;publicclassEnvDump{publicstaticvoidmain(Stringargs[]){for(Map.Entryentry:System.getenv().entrySet()){System.out.println(entry.getKey()+"="+entry.getValue());}}}运行结果：C:java>javaEnvDumpPROCESSOR_ARCHITECTURE=x86LOGONSERVER=ZZ3Z100HOMEDRIVE=C:HOMEPATH=DocumentsandSettingsOwner.LEGEND-A7R5PDTMSESSIONNAME=ConsoleTMP=C:DOCUME~1OWNER~1.LEGLOCALS~1Tempjava_home=c:jdk1.5windir=C:WINDOWSant_home=c:ant1.6PROCESSOR_IDENTIFIER=x86Family15Model2Stepping4,GenuineIntelSystemDrive=C:USERPROFILE=C:DocumentsandSettingsOwner.LEGEND-A7R5PDTMPATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSHCommonProgramFiles=C:ProgramFilesCommonFilesNUMBER_OF_PROCESSORS=1ComSpec=C:WINDOWSsystem32cmd.exeCOMPUTERNAME=ZZ3Z100OS=Windows_NTUSERNAME=OwnerCLIENTNAME=Console=ExitCode=00000000TEMP=C:DOCUME~1OWNER~1.LEGLOCALS~1TempUSERDOMAIN=ZZ3Z100ALLUSERSPROFILE=C:DocumentsandSettingsAllUsers.WINDOWSPROCESSOR_LEVEL=15SystemRoot=C:WINDOWSclasspath=c:jdk1.5lib;c:java=C:=C:javaAPPDATA=C:DocumentsandSettingsOwner.LEGEND-A7R5PDTMApplicationDataPath=C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;c:jdk1.5bin;c:ant1.6binPROMPT=$P$GPROCESSOR_REVISION=0204ProgramFiles=C:ProgramFilesC:java>
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