neorobin

@echo off
setlocal enableDelayedExpansion
for /f "delims=" %%l in (ip.txt) do (
  set "cnt=0"
  for %%i in (%%l) do (
    set /a cnt+=1
    if !cnt! leq 2 (
      set tt=%%i
      REM set /a (((222)*256+248)*256+240)*256+1 这种形式的结果将超出批处理计算范围, 故不可用
      set "sum=0"
      for %%t in (!tt:.^= !) do (
        call :cen !sum! 256 sum
        call :jia !sum! %%t sum
      )
      set /p=!sum! <nul
    ) else set /p= %%i<nul
  )
  echo.
)
pause
exit /b

:jia 加法函数（封装）by @随风 @bbs.bathome.net
::计算任意位数的正整数加法
setlocal enabledelayedexpansion&set f=&set "t="
set var1=%~1&set var2=%~2&set /a j=0,n1=0,n2=0
for /l %%a in (0 1 9) do (set vard1=&set "vard2="
set var1=!var1:%%a= %%a !&set var2=!var2:%%a= %%a !)
for %%a in (!var1!)do (set/a n1+=1&set vard1=%%a !vard1!)
for %%a in (!var2!)do (set/a n2+=1&set vard2=%%a !vard2!)
(if !n1! lss !n2! (set var1=%var2%&set "var2=%var1%"
set vard1=%vard2%&set vard2=%vard1%))&set "var2=!var2: =!"
for %%a in (!vard1!) do (if "!var2!"=="" set /a var2=0
set /a a=%%a+!var2:~-1!+j&set t=!a:~-1!!t!&set "a=0!a!"
set "j=!a:~-2,1!"&set var2=!var2:~0,-1!)
if !j! neq 0 set "t=!j!!t!"
Endlocal&set %~3=%t%&goto :EOF

:cen 乘法函数（封装）by @随风 @bbs.bathome.net
::计算任意位数的正整数乘法
setlocal enabledelayedexpansion
if "%~1"=="0" Endlocal&set %~3=0&goto :EOF
if "%~2"=="0" Endlocal&set %~3=0&goto :EOF
set f=&set jia=&set ji=&set /a n1=0,n2=0
set vard1=&set "vard2="&set var1=%~1&set "var2=%~2"
for /l %%a in (0 1 9) do (
set var1=!var1:%%a= %%a !&set var2=!var2:%%a= %%a !)
for %%a in (!var1!)do (set /a n1+=1&set vard1=%%a !vard1!)
for %%a in (!var2!)do (set /a n2+=1&set vard2=%%a !vard2!)
if !n1! gtr !n2! (set vard1=%vard2%&set vard2=%vard1%)
for %%a in (!vard1!) do (set "t="&set /a j=0
for %%b in (!vard2!) do (if "!jia!"=="" set /a jia=0
set /a a=%%a*%%b+j+!jia:~-1!&set "t=!a:~-1!!t!"
set a=0!a!&set "j=!a:~-2,1!"&set jia=!jia:~0,-1!)
set "ji=!t:~-1!!ji!"
if "!j:~0,1!"=="0" (set ss=) else set "ss=!j:~0,1!"
set jia=!ss!!t:~0,-1!)
if not "!j:~0,1!"=="0" set "t=!j:~0,1!!t!"
set "ji=!t!!ji:~1!"
Endlocal&set %~3=%ji%&goto :EOF
复制代码

[ 本帖最后由 neorobin 于 2010-7-14 00:12 编辑 ]

neorobin

稍作修改即可 输出 到文件, 将原来的关键输出代码 全部 括起, 如下重新安排

>ip2.txt (
  关键输出代码部分
)
复制代码

做好后便是

@echo off
setlocal enableDelayedExpansion
>ip2.txt (
	for /f "delims=" %%l in (ip.txt) do (
		set "cnt=0"
		for %%i in (%%l) do (
			set /a cnt+=1
			if !cnt! leq 2 (
				set tt=%%i
				REM set /a (((222)*256+248)*256+240)*256+1 这种形式的结果将超出批处理计算范围, 故不可用
				set "sum=0"
				for %%t in (!tt:.^= !) do (
					call :cen !sum! 256 sum
					call :jia !sum! %%t sum
				)
				set /p=!sum! <nul
			) else set /p= %%i<nul
		)
		echo.
	)
)
start ip2.txt
pause
exit /b

:jia 加法函数（封装）by @随风 @bbs.bathome.net
::计算任意位数的正整数加法
setlocal enabledelayedexpansion&set f=&set "t="
set var1=%~1&set var2=%~2&set /a j=0,n1=0,n2=0
for /l %%a in (0 1 9) do (set vard1=&set "vard2="
set var1=!var1:%%a= %%a !&set var2=!var2:%%a= %%a !)
for %%a in (!var1!)do (set/a n1+=1&set vard1=%%a !vard1!)
for %%a in (!var2!)do (set/a n2+=1&set vard2=%%a !vard2!)
(if !n1! lss !n2! (set var1=%var2%&set "var2=%var1%"
set vard1=%vard2%&set vard2=%vard1%))&set "var2=!var2: =!"
for %%a in (!vard1!) do (if "!var2!"=="" set /a var2=0
set /a a=%%a+!var2:~-1!+j&set t=!a:~-1!!t!&set "a=0!a!"
set "j=!a:~-2,1!"&set var2=!var2:~0,-1!)
if !j! neq 0 set "t=!j!!t!"
Endlocal&set %~3=%t%&goto :EOF

:cen 乘法函数（封装）by @随风 @bbs.bathome.net
::计算任意位数的正整数乘法
setlocal enabledelayedexpansion
if "%~1"=="0" Endlocal&set %~3=0&goto :EOF
if "%~2"=="0" Endlocal&set %~3=0&goto :EOF
set f=&set jia=&set ji=&set /a n1=0,n2=0
set vard1=&set "vard2="&set var1=%~1&set "var2=%~2"
for /l %%a in (0 1 9) do (
set var1=!var1:%%a= %%a !&set var2=!var2:%%a= %%a !)
for %%a in (!var1!)do (set /a n1+=1&set vard1=%%a !vard1!)
for %%a in (!var2!)do (set /a n2+=1&set vard2=%%a !vard2!)
if !n1! gtr !n2! (set vard1=%vard2%&set vard2=%vard1%)
for %%a in (!vard1!) do (set "t="&set /a j=0
for %%b in (!vard2!) do (if "!jia!"=="" set /a jia=0
set /a a=%%a*%%b+j+!jia:~-1!&set "t=!a:~-1!!t!"
set a=0!a!&set "j=!a:~-2,1!"&set jia=!jia:~0,-1!)
set "ji=!t:~-1!!ji!"
if "!j:~0,1!"=="0" (set ss=) else set "ss=!j:~0,1!"
set jia=!ss!!t:~0,-1!)
if not "!j:~0,1!"=="0" set "t=!j:~0,1!!t!"
set "ji=!t!!ji:~1!"
Endlocal&set %~3=%ji%&goto :EOF
复制代码

neorobin

在 cn-dos 有帖, netbenton 等人给出了更简洁的解
http://www.cn-dos.net/forum/viewthread.php?tid=45734

neorobin

楼主要的是 点分 4 段 十进制 转换为 十进制单一数
你这是所要求的逆过程

点分 4 段 十进制 转换为 十进制单一数
关键是第一段 在 127 以上时, set /a 计算范围已不满足, 故增加了复杂性