中国DOS联盟

@echo off&setlocal EnableDelayedExpansion

set num1=0

set num2=0



for /f "delims= " %%i in (a.txt) do (

    set var=%%i

    if defined var goto begin

)



:begin

for /f "skip=1 delims= " %%i in (a.txt) do (

    set bar=!var!

    set var=%%i

    set /a car=!var!-!bar!

    echo !car!>>b.txt

)

set /a car=!bar!-!bar!

echo !car!>>b.txt

goto insert



:insert

for /f "tokens=1,2 delims= " %%a in (a.txt) do (

    set /a num1+=1

    for /f "delims=" %%i in (b.txt) do (

        set /a num2+=1

        if !num1!==!num2! echo %%a %%i %%b>>c.txt

    )

    set num2=0

)

del b.txt

endlocal

goto :eof

@echo off

Setlocal Enabledelayedexpansion

type nul>b.txt

set /a m=0,n=m-1

for /f "tokens=1,*" %%a in ('type a.txt') do (

  set str!m!=%%a&set var!m!=%%b

  if !m! gtr 0 (

    set /a sth=str!m!-str!n!

    >>b.txt call echo %%str!n!%% !sth! %%var!n!%%

  )

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

)