陷入批处理文件的 if then 语法

Question

这是我正在尝试构建的批处理文件（在我的产品密钥所在的位置带有星号），用于检查 Windows 是否已激活，如果没有则激活它。它似乎卡在 IF 语句的末尾，并在“（”处到达行尾时立即中断。有什么想法吗？暂停是为了检查错误

echo Welcome to the Br1llaintJim Windows 7 activator. A dialogue box
echo should appear at the end if the activation is successful.
echo.
echo Press any key to proceed with activation...
pause > nul
cscript %windir%\system32\slmgr.vbs /xpr > xprtest.txt
pause
for /F "skip=4 delims=" %%i in (xprtest.txt) do set "xprvar=%%i"&goto nextline
:nextline
pause
IF %xprvar% == "    The machine is permanently activated." (
echo System is already activated. Exiting now...
pause 
exit
) ELSE (
slmgr /ipk *****-*****-*****-*****-*****
pause
slmgr /ato
echo System has been successfully activated
pause
) 

Answer 1

我尝试了您的代码，只需在 %xprvar% 周围添加引号就可以了：

IF "%xprvar%" == "    The machine is permanently activated." (
....