@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in (LastNumberChange.txt) do set/a n+=1&set LastLine=$%%i$
for /f "delims=" %%i in (LastNumberChange.txt) do (
set/a m+=1
if %n% neq !m! call set "all=!all!%%i&echo."
)
:start
set FirstNumber=%LastLine:~,1%
set "all1=!all1!%FirstNumber%"
set LastLine=%LastLine:~1%
echo %LastLine%|findstr "[0-9]" >nul&&goto :start
:all1
set /a t+=1
call set LastOne=%%all1:~-!t!%%
set/a x=LastOne*1
if "%LastOne%"=="%x%" goto :all1
set/a LastOne=%LastOne:~1%*7
set /a t-=1
set xlm=!all1:~,-%t%!
Set "Sum=%all%%xlm%%LastOne%%LastLine%"
echo %Sum:$=%
pause
方法二：（用时0.02~0.05秒）
@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in (LastNumberChange.txt) do set/a n+=1&set LastLine=$%%i$
for /f "delims=" %%i in (LastNumberChange.txt) do (
set/a m+=1
if %n% neq !m! call set "all=!all!%%i&echo."
)
:LastOne
set/a x+=1
call set LastOne=%%LastLine:~-!x!,1%%
set /a Mult=%LastOne%*1
if not "%Mult%"=="%LastOne%" goto :LastOne
set/a x-=1
call set Front=%%LastLine:~,-%x%%%
call set Last=%%LastLine:~-%x%%%
:Middle
set/a x1+=1
call set LastOne1=%%Front:~-!x1!%%
set /a Mult1=%LastOne1%*1
if "%Mult1%"=="%LastOne1%" goto :Middle
set/a Middle=%LastOne1:~1%*7
set/a x1-=1
call set Front=%%Front:~,-%x1%%%
set "Sum=%all%%Front%%Middle%%Last%"
echo %Sum:$=%
pause
batman：
@echo off
for /f "delims=" %%i in (1.txt) do (
set "str=%%i"&set "begin=a"
setlocal enabledelayedexpansion
call :lp
echo !str!!a!!var!!last!
endlocal
)
pause>nul&goto :eof
:lp
set "a=%str:~-1%"&set "str=%str:~,-1%"
if "%a%" geq "0" (
if "%a%" leq "9" set "flag=a"&set "begin="
)
if defined flag (
set var=%a%!var!&set "flag="
) else (
if defined begin (
set last=%a%!last!
) else (
set /a var*=7&goto :eof
)
)
goto lp
随风：
@echo off&setlocal EnableDelayedExpansion
for /l %%a in (0 1 9) do set .%%a=%%a
for /f "delims=" %%a in (a.txt) do (
set flag=&set num=&set sun=&set "str=%%a"
call :loop
)
pause
:loop
set "var=!str:~-1!"
if defined .!var! (set num=!var!!num!&set flag=a) else (set sun=!var!!sun!&set flag=)
if not defined num set str=!str:~0,-1!&goto loop
if defined flag set str=!str:~0,-1!&goto loop
set /a num*=7
echo !str!!num!!sun:~1!
goto:eof
