中国DOS联盟

Originally posted by everest79 at 2008-8-24 14:11:
希望terse讲解下算法，我没看懂

@echo off&setlocal enabledelayedexpansion

:st

rem call 9次 %1-%9 即1-9行

for /l %%i in (1 1 9) do call:lp %%i

pause&exit

:lp

rem 每行获1-9随机数

    for /l %%i in (1 1 9) do set .!random!!random!!random!=%%i

    for /f "tokens=1,2 delims==" %%i in ('set .') do set str=%%j !str!&set %%i=

rem 清空出错时返回IP标签时的%1所在行的变量

    for /l %%i in (1 1 9) do set %1%%i=

rem 设定列n(起始为1) v上一行行值%1-1 y-z起始列范围值 x起始行值 变量a 判断是否1 4 7行

    set var=%str%&set/a n=1,v=%1-1,y=1,z=3,x=1,a=%1%%3

rem 根据%1范围值 设定 x(行号)

    if %1 geq 4 if %1 leq 6 (set/a x=4) else set/a x=7

:lp0

rem 根据变量列值n值 设定y-z列范围值

    if %n% geq 4 if %n% leq 6 (set/a y=4,z=6) else set/a y=7,z=9

    for %%a in (!var!) do (

rem 同行出现过 清掉返回lp0

    if defined .%%a set var=!var:%%a=!&goto lp0

rem 判断%1行之前相同列是否出现过

    for /l %%i in (1 1 %1) do if %%a equ !%%i%n%! set var=!var:%%a=!&goto lp0

rem 由变量a判断%1行是否1 4 7行 并判断x-v行的y-z列是否出现过

    if %a% neq 1 (for /l %%j in (%x% 1 %v%) do (

    for /l %%k in (%y% 1 %z%) do if %%a equ !%%j%%k! set var=!var:%%a=!&goto lp0

    ))

    set %1!n!=%%a&set .%%a=a

rem 循环1-9列

    if !n! lss 9 set/a n+=1&set var=!str:%%a=!&goto lp0

    )

rem 清空变量

    set str=&set n=

    for /l %%i in (1 1 9) do set .%%i=

rem 判断是否的到9列 设定出错30次后 重新开始

    if "!%19!"=="" set/a mn+=1&if !mn! gtr 30 (set mn=&cls&goto st)else goto lp

    for /l %%i in (1 1 9) do set .%%i=&set/p=!%1%%i! <nul

    echo.&set mn=

@echo off &setlocal enabledelayedexpansion

:test

set "numx=123456789"

set "ca=call :next"

:first

 set /a ra=%random%%%9+1,rb=%random%%%9+1

 set numx=!numx:%ra%=x!

 set numx=!numx:%rb%=%ra%!

 set numx=!numx:x=%rb%!

if %ra% neq 9 (goto :first)



set h1=%numx%

%ca% 1 2

%ca% 2 3

set h4=%h1:~2,1%%h1:~0,2%%h1:~5,1%%h1:~3,2%%h1:~8,1%%h1:~6,2%

%ca% 4 5

%ca% 5 6

set h7=%h4:~2,1%%h4:~0,2%%h4:~5,1%%h4:~3,2%%h4:~8,1%%h4:~6,2%

%ca% 7 8

%ca% 8 9

for /l %%a in (1,1,9) do (for /l %%b in (1,1,9) do (set h%%a=!h%%a:%%b=%%b !))

for /l %%a in (1,1,9) do (echo,!h%%a!)

echo, &pause &echo,

goto :test



:next

set h%2=!h%1:~3,3!!h%1:~6!!h%1:~0,3!

goto :eof