@echo off
setlocal enabledelayedexpansion
chcp 65001 > nul 
set "device_prefix=DESKTOP-"
set "chars=ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
set "rand_str="
for /l %%i in (1,1,7) do (
    set /a "index=!RANDOM! %% 36"
    call set "char=%%chars:~!index!,1%%"
    set "rand_str=!rand_str!!char!"
)
set cname=!device_prefix!!rand_str!
echo !cname!| clip
echo 已复制 !cname! 到剪贴板
timeout /t 2 /nobreak >nul