z_berry

@echo off
setlocal enabledelayedexpansion
echo                 统计结果>ret.txt
for /L %%i in (0,1,20) do (
for /L %%a in (0,1,33) do (
set /a temp=5*%%i+3*%%a
if 100 geq !temp! (
set /a m=100-!temp!
set /a n+=1
echo 第!n!种方法为：%%i只公鸡，%%a只母鸡，!m!只小鸡 >>ret.txt
)
)
)
echo 方法有：%n%个 >>ret.txt
pause>nulCOPY

z_berry

难道谁用了三重吗？