路过

@echo off
::利用绝对值的定义构造的函数abs，#为算式，结果为变量jdz
set "abs=set/a jdz=#&if !jdz! leq 0 set/a jdz=-jdz"
setlocal enabledelayedexpansion

for %%a in (5 -5) do (
    for %%b in (3 -3) do (
        set/a a=%%a,b=%%b,w=b-a
        %abs:#=a-b%
        if !jdz!==!w! (echo;a:%%a b:%%b)
    )
)
pause
exit
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