中国DOS联盟

@echo off
>b.txt type nul
for /f "tokens=1-2 delims==" %%a in (a.txt) do (
  if "%%b" equ "" (
    >>b.txt echo %%a
  ) else (
    set str=%%b
    setlocal enabledelayedexpansion
    if "!str:~1,1!" neq ":" (
      >>b.txt echo %%a=%%b
    ) else (
      >>b.txt echo %%a=e!str:~1!
    )
    endlocal
  )
)
move /y b.txt a.txt

@echo off
>b.txt type nul
for /f "tokens=1* delims=:" %%a in (a.txt) do (
  if "%%b" equ "" (
    >>b.txt echo %%a %%b
  ) else (
    set str=%%b  
    set atr=%%a
    setlocal enabledelayedexpansion
    if "!str:~0,1!" neq "\" (
      >>b.txt echo %%a:%%b
    ) else ( 
      >>b.txt echo !atr:~0,-1!E:%%b
    )
    endlocal
  )
)
move /y b.txt a.txt

@echo off&setlocal enabledelayedexpansion
cd.>b.txt
for /f "delims=" %%i in (a.txt) do (
    set /a n+=1
    set str1=%%i
    set str2=!str1::\=!
    if "!str1!" neq "!str2!" goto lp
    >>b.txt echo %%i
   )
:lp
for /f "tokens=1* delims=:" %%i in ("%str1%") do set str=%%i&set E=%%j
>>b.txt echo %str:~0,-1%E:%E%
>>b.txt more +%n% a.txt
move /y b.txt a.txt