sjzong

 
@echo off
setlocal enableDelayedExpansion
set/a A=%random%%%5*9
set/a B=(%random%%%3+1)*3
echo A=%A% B=%B%
set fuhao=+-*/
: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
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[ 本帖最后由 sjzong 于 2009-4-16 22:48 编辑 ]