@echo off

set OsVersion=0
set OsProcessor=0

echo 作業系統版本:
ver|findstr /r /i " [版本 5.1.*]" > NUL && goto WindowsXP
ver|findstr /r /i " [版本 6.1.*]" > NUL && goto Windows7
goto UnknownVersion

:WindowsXP
set OsVersion="WindowsXP"
goto GetProcessor

:Windows7
set OsVersion="Windows7"
goto GetProcessor

:UnknownVersion
set OsVersion="UnknownVersion"
goto GetProcessor

:GetProcessor
if /i "%processor_architecture%" equ "x86" (
set OsProcessor="X86"
) else (
if /i "%processor_architecture%" equ "amd64" (
set OsProcessor="X64"
) else (
set OsProcessor="UnknownProcessor"
)
)

echo %OsVersion% %OsProcessor%

pause
 

使用ver|findstr /r /i " [版本 5.1.*]" > NUL後環境變數errorlevel中儲存的退出碼是cmd.exe的，不是findstr.exe

使用ver|findstr /r /i " [版本 5.1.*]" > NUL && goto WindowsXP時用的是findstr.exe的退出碼