中国DOS联盟

::code by youxi01@cn-dos.net
@ECHO OFF
setlocal enabledelayedexpansion
title 乱序数值的提取与计算
color 1f
set "str1=flyi2121212t2fds654654546654654654654656521d5g615"
set "str2=wo6654541s1545446ffd6551323"
set/a m=0
echo 正在提取str1中的数值...
echo.
echo 提取出的数值有:
echo.
call :GetStr "%str1%"
set Rnum
echo ---------------------------------------
set/a Resstr=1
echo 正在求取str1中各数值之积...
echo.
FOR /F "delims== tokens=2" %%i in ('set Rnum') do call :Multi !Resstr! %%i
set num1=!Resstr!
echo 计算结果为：%num1%
for /l %%i in (1 1 %i%) do set Rnum%%i=
set/a i=0,Resstr=1
echo ---------------------------------------
echo 正在提取str2中的数值...
echo.
echo 提取出的数值有:
echo.
call :GetStr "%str2%"
set Rnum
echo ---------------------------------------
echo 正在求取str2中各数值之积...
FOR /F "delims== tokens=2" %%i in ('set Rnum') do call :Multi !Resstr! %%i
set num2=%Resstr%
echo 计算结果为：%num2%

echo ---------------------------------------
echo 正在比较大小...
echo.
if %num1% lss %num2% (
      echo num1 比 num2 小
      call :Sub %num2% %num1%) else (
          echo num1 比 num2 大
          call :Sub %num1% %num2%)

for /f "delims=0 tokens=*" %%i in ("!OKstr!") do echo 它们的差值为：%%i

pause>nul

:GetStr OBJ
   set "str=%~1"
   set/a i=1
   for /l %%i in (0 1 10000) do (
       set "Tstr=!str:~%%i,1!"
       IF "!Tstr!"=="" call :Check Rnum!i! & goto :eof
       IF !Tstr! GEQ 0 IF !Tstr! LEQ 9 (call set Rnum!i!=%%Rnum!i!%%!Tstr!) else (
            if defined Rnum!i! call :Check Rnum!i! & set/a i+=1))
       goto :EOF
         
:Check OBJ
   for /f "delims=0 tokens=*" %%i in ("!%1!") do set %1=%%i
   GOTO :EOF

:Split OBJ num(i)Name CX
   set Rstr=%~1
   if %Rstr% LEQ 10000 set "%2!%3!=%Rstr%" & goto :eof
   set/a %2!%3!=10000%Rstr:~-4%%%10000
   set/a %3+=1
   call :Split %Rstr:~0,-4% %2 %3
   goto :eof

:Multi
set/a m=0,n=0,j=0
set Resstr=
call :Split %1 Snum m
call :Split %2 Snum_ n

for /l %%i in (0 1 %m%) do (
    for /l %%j in (0 1 %n%) do (
        set/a j=%%i+%%j
        set/a ResNum!j!+=!Snum%%i!*!Snum_%%j!))

set/a j+=1,flag=0
for /l %%i in (0 1 %j%) do (
      set/a ResNum%%i+=!flag!
      if !ResNum%%i! GTR 10000 (
            set/a flag=!ResNum%%i:~0,-4!
            set ResNum%%i=!ResNum%%i:~-4!) else (
               set ResNum%%i=0000!ResNum%%i!
               set ResNum%%i=!ResNum%%i:~-4!
               set/a flag=0)
      set Resstr=!ResNum%%i!!Resstr!)
for /f "delims=0 tokens=*" %%i in ("%Resstr%") do set Resstr=%%i
for /l %%i in (0 1 %j%) do set/a ResNum%%i=0

goto :eof

:Sub MaxNum MinNum
     set/a flag1=0,m=0,n=0
     call :Split %1 ok m
     call :Split %2 ok_ n
     for /l %%i in (0 1 %n%) do (
         set/a ok%%i-=!ok_%%i!-!flag1!
         if !ok%%i! lss 0 (
             set/a ok%%i+=10000
             set/a flag1=-1) else (set/a flag1=0)
         set ok%%i=0000!ok%%i!
         set ok%%i=!ok%%i:~-4!)
     if !flag1! LSS 0 (
          set/a n+=1
          set/a ok!n!+=!flag!)
     for /l %%i in (0 1 %m%) do set OKstr=!ok%%i!!OKstr!