[文本处理] 批处理如何自动求和？

@echo off&setlocal enabledelayedexpansion
for /F "tokens=3,4 delims=. " %%a in (1.txt) do (
    set b=1%%b&set a=%%a&set a=!a:,=!
    if "%%b"=="" set b=100
    set/a y=y+b-100,x+=a
)
if not "%y:~0,-2%"=="" set/a x+=%y:~0,-2%
:n
if not "!x:~%n%,1!"=="" set/a n+=1&goto:n
for /l %%a in (-1,-1,-%n%) do (
    set/a p+=1
    if !p!==4 (set "q=,"&set p=1) else set q=
    set m=!x:~%%a,1!!q!!m!
)
>>1.txt echo.合计：          %m%.%y:~-2%
复制代码