cainiao736

@echo off
setlocal enableDelayedExpansion
set /a A=%random%%%5*9
set /a B=(%random%%%3+1)*3
set fuhao= +-*/
set n=1
:calc
set/a RS=!A! !fuhao:~%n%,1! !B!
echo !A! !fuhao:~%n%,1! !B! = !RS!
set /a n+=1
if not "!fuhao:~%n%,1!"=="" goto :calc
pause>nul
goto :eof
复制代码

嘿嘿，其实不是很明白，改来改去就给改好了