java环境变量

 

@echo off&setlocal enabledelayedexpansion  

:begin  

cls  

set/p path_=请输入你要添加的环境变量的路径：  

if not defined path_ goto error  

for,/f,"skip=4 tokens=1,2,*",%%a,in,('reg query "HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/Session Manager/Environment" /v Path'),do,(  

     echo 当前的环境变量为:  

        echo %%c  

        echo;  

        set/p yesno=是否确认将"%path_%"添加到系统环境变量中去？[Y]/[N]  

        if /i "!yesno!"=="y" (  

                reg add "HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/Session Manager/Environment" /v Path /t REG_EXPAND_SZ /d "%%c;%path_%" /f  

                )  

        goto :eof  

)  

pause  

goto :Eof          

:error  

echo 输入错误，请重新输入  

pause  

goto begin