新装的系统（以下都是windows sandbox截图）
cmd中用set命令查看所有变量
powellshell中用Get-ChildItem Env:（可以输出到文件Get-ChildItem Env: | out-file env.txt），命令Get-Item可以使用ls替代
Name Value
---- -----
ALLUSERSPROFILE C:ProgramData
APPDATA C:UsersWDAGUtilityAccountAppDataRoaming
CLIENTNAME 583482e0-fafd-4
CommonProgramFiles C:Program FilesCommon Files
CommonProgramFiles(x86) C:Program Files (x86)Common Files
CommonProgramW6432 C:Program FilesCommon Files
COMPUTERNAME 2A41C45E-C613-4
ComSpec C:Windowssystem32cmd.exe
DriverData C:WindowsSystem32DriversDriverData
HOMEDRIVE C:
HOMEPATH UsersWDAGUtilityAccount
LOCALAPPDATA C:UsersWDAGUtilityAccountAppDataLocal
LOGONSERVER \2A41C45E-C613-4
NUMBER_OF_PROCESSORS 8
OS Windows_NT
Path C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:WindowsSystem32WindowsPowerShellv1.0;C:WindowsSystem32OpenSSH;C:UsersWDAGUtilityAccountAppDataLocalMicrosoftWindowsApps;
PATHEXT .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL
PROCESSOR_ARCHITECTURE AMD64
PROCESSOR_IDENTIFIER Intel64 Family 6 Model 158 Stepping 13, GenuineIntel
PROCESSOR_LEVEL 6
PROCESSOR_REVISION 9e0d
ProgramData C:ProgramData
ProgramFiles C:Program Files
ProgramFiles(x86) C:Program Files (x86)
ProgramW6432 C:Program Files
PSModulePath C:UsersWDAGUtilityAccountDocumentsWindowsPowerShellModules;C:Program FilesWindowsPowerShellModules;C:Windowssystem32WindowsPowerShellv1.0Modules
PUBLIC C:UsersPublic
SESSIONNAME 31C5CE94259D4006A9E4#0
SystemDrive C:
SystemRoot C:Windows
TEMP C:UsersWDAGUtilityAccountAppDataLocalTemp
TMP C:UsersWDAGUtilityAccountAppDataLocalTemp
USERDOMAIN 2A41C45E-C613-4
USERDOMAIN_ROAMINGPROFILE 2A41C45E-C613-4
USERNAME WDAGUtilityAccount
USERPROFILE C:UsersWDAGUtilityAccount
windir C:Windows