常用环境变量与对应的路径
| 环境变量 | 路径 |
| %HOMEPATH% | C:\Users\用户名 |
| %USERPROFILE% | C:\Users\用户名 |
| %LOCALAPPDATA% | C:\Users\用户名\AppData\Local |
| %APPDATA% | C:\Users\用户名\AppData\Roaming |
| %TEMP%和%TMP% | C:\Users\用户名\AppData\LocalTemp |
| %ALLUSERSPROFILE% | C:\ProgramData |
| %PROGRAMDATA% | C:\ProgramData |
| %COMMONPROGRAMFILES% | C:\Program Files\Common Files |
| %COMMONPROGRAMFILES(x86)% | C:\Program Files (x86)\Common Files |
| %COMSPEC% | C:\Windows\System32\cmd.exe |
| %HOMEDRIVE% | C:\ |
| %SystemDrive% | C:\ |
| %PROGRAMFILES% | C:\Program Files |
| %PROGRAMFILES(X86)% | C:\Program Files (x86) |
| %PUBLIC% | C:\Users\Public |
| %SystemRoot% | C:\Windows |
| %WINDIR% | C:\Windows |