16.常见环境变量对应系统文件路径

%ALLUSERSPROFILE%
C:\ProgramData

%APPDATA%
C:\Users\admin\AppData\Roaming

%COMMONPROGRAMFILES%
C:\Program Files\Common Files

%COMMONPROGRAMFILES(x86)%
C:\Program Files (x86)\Common Files

%COMSPEC%
C:\Windows\system32\cmd.exe

%HOMEDRIVE%和%SystemDrive%
C:

%HOMEPATH%
(C:)\Users\admin

%LOCALAPPDATA%
C:\Users\admin\AppData\Local

%PROGRAMDATA%
C:\ProgramData

%PROGRAMFILES%
C:\Program Files

%PROGRAMFILES(X86)%
C:\Program Files (x86)

%PUBLIC%
C:\Users\Public

%SystemRoot%
C:\Windows

%TEMP%和%TMP%
C:\Users\admin\AppData\Local\Temp

%USERPROFILE%
C:\Users\admin

%WINDIR%
C:\Windows

%SystemRoot%\Resources 
Windows主题目录C:\Windows\Resources

%SystemRoot%\Web\Wallpaper
Windows自带的壁纸目录C:\Windows\Web\Wallpaper