最近一些DOS命令学习

@echo off&setlocal ENABLEDELAYEDEXPANSION 
set sig=0 for /f %%i in ('wmic DISKDRIVE get signature') 
do ( set /a sig+=1 if !sig!==2 set pcid=%%i ) 
set sig=0 for /f %%i in ('wmic cpu get ProcessorId') 
do ( set /a sig+=1 if !sig!==2 set pcid=!pcid!%%i ) 
echo cpu的id和硬盘序列号的组合为: %pcid% pause