唯尘

@echo off
set /p num=请输入：
set /a n=%num%%%2
if %n% equ 0 (echo %num% 是偶数) else (echo %num% 是奇数)
pause>nul 2>nul

唯尘

@echo off
set var=%random%
echo %var%
set /a num=%var%%%2
if %num% equ 0 (echo 随机数是偶数) else (echo 随机数是奇数)
pause>nul

唯尘

@echo off
:sc
set /a num=%random%
set /a a=%num%%%2
if %a%==0 (echo 偶数) else (echo 奇数)
ping 127.0.0.0 -n 1 >Nul 2>Nul
goto :sc

唯尘

@echo off
:sc_start
set /p str=请输入需要判断的数值：
set /a s=%str%%%2
if %s%==1 (echo 奇数) else (echo 偶数)
pause>nul
goto :sc_start