netbenton

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为什么这样 /ku

netbenton

@echo off&color 2f
setlocal enableDelayedExpansion
set /p max=输入上限数：
set /a max+=1
:lp
set /a tre=!random!%%max,one=!random!%%max,fh=!random!%%2
if !tre! gtr !one! (
  set/a two=tre-one
if !fh! equ 0 (set str=!tre!-!one!) else (set str=!one!+!two!)
) else (
  set/a two=one-tre
  if !fh! equ 0 (set str=!one!-!tre!) else (set str=!tre!+!two!)
)
set/a des=!str!
echo;!str!=?
set in=err
set /p in=输入结果：
if !in! equ !des! (echo;答对了！你真聪明！) else (echo;真可惜，正确答案是!des!)
pause>nul
echo;
echo;
goto :lp
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