windows的系统变量

在Windows cmd小黑框里输入set命令，可以查看现有的系统变量

“="前的部分就是变量名。

%USERPROFILE% =C:\Users\用户名

%SystemRoot% =C:\WINDOWS

%SystemDrive% =C:

%APPDATA% =C:\Users\用户名\AppData\Roaming

%LOCALAPPDATA% =C:\Users\用户名\AppData\Local

%windir% =C:\WINDOWS

%Path% =C:\Windows\system32;C:\Windows; 

%ProgramData% =C:\ProgramData

%ProgramFiles% =C:\Program Files

%ProgramFiles(x86)% =C:\Program Files (x86)

%ALLUSERSPROFILE% =C:\ProgramData

%CommonProgramFiles% =C:\Program Files\Common Files

%CommonProgramFiles(x86)% =C:\Program Files (x86)\Common Files

%CommonProgramW6432% =C:\Program Files\Common Files

%COMPUTERNAME% =MyPC

%ComSpec% =C:\WINDOWS\system32\cmd.exe

%HOMEDRIVE% =C:

%HOMEPATH% =\Users\用户名

%LOGONSERVER% =\\MicrosoftAccount

%OS% =Windows_NT

%ProgramW6432% =C:\Program Files  

%PUBLIC% =C:\Users\Public 

%TEMP% =C:\Users\用户名\AppData\Local\Temp

%TMP% =C:\Users\用户名\AppData\Local\Temp

%USERDOMAIN% =MyPC 

%USERNAME% =用户名