中国DOS联盟

@echo off

Setlocal Enabledelayedexpansion

set m=0&set "fl=%~fs0"

if not "%~1"=="" (

  set "fl=%~1"

)

type "%fl%">tmp

>>tmp echo.

for /l %%a in (1 1 80) do (set "kong=!kong! ")

for /f "tokens=1,* delims=:" %%a in ('findstr /o .* "tmp"') do (

  set /a m+=1,n=m-1

  set "num!m!=%%a"&call set "str!m!=%%b"

  if !m! gtr 1 (

    set /a "lgth=(80+num!n!+2-num!m!)/2"

    call echo.%%kong:~0,!lgth!%%%%str!n!%%

  )

)

del tmp

pause