Seter

@echo off&setlocal enabledelayedexpansion
set a=1
set b=0
set c=0
set d=0
set/pn=
for /l %%i in (1,1,%n%) do (
set/ad+=c
set e=!d!
set c=!b!
set b=!a!
set a=!e!
)
set/as=a+b+c+d
echo %s%
pause
复制代码

土办法