@echo off
:: 對數字由大到小排序
:: test.txt中的內容為一個數組：123,456,2,1,6……
:: 若文本內一行一個數字，則用:_sort一段代碼就可以了，但是，
:: 需要注意的是， findstr /v ^!max!$ test.txt 并不能過濾掉最后一行內容
:: 除非最后一行是個空行。也就是說，findstr過濾行的時候，只能識別行分隔符號，
:: 沒有行分隔符號，則不認為是一行。
:: code by jm 2006-10,4 CMD@XP
copy test.txt test.bak>nul
cd.>test.txt
for /f %%i in (test.bak) do call :split "%%i,:"

setlocal enabledelayedexpansion
:_sort
for /f %%i in (test.txt) do (
    set /a max=%%i
    for /f %%j in (test.txt) do (
        set /a num=%%j
        if !num! gtr !max! (set max=!num!) else (set max=!max!)
    )
    echo !max!
    >test1.txt findstr /v ^!max!$ test.txt
    move test1.txt test.txt
    goto _sort
)
move test.bak test.txt
pause
goto :eof

:split
for /f "tokens=1* delims=," %%i in (%1) do (
    >>test.txt echo %%i
    if not "%%j"==":" call :split "%%j"
)
goto :eof

通過對創建的文件大小來對數字進行排序
code by 3742668 2006-10-4
fsutil file createnew %%i %%i語句執行速度太慢，換成for /l %%j in (1,1,%%i) do echo.>>%%i語句將使效率大為提升(-jm注)
@echo off
    set numbers=%random% %random% %random% %random% %random% %random% %random% %random%
    echo 排序前數字為: %numbers%
    md sort_tmp && pushd sort_tmp
    for %%i in (%numbers%) do fsutil file createnew %%i %%i >nul
    echo 從小到大排列:
    dir /os /b
    popd && rd /s /q sort_tmp
pause
goto :eof

通過數字大小的比較來排序
但是 call :sort !str:%num%=! 一句會導致出錯
@echo off
setlocal enabledelayedexpansion
    set numbers=%random% %random% %random% %random% %random% %random% %random% %random%
    echo 排序前數組為: %numbers%
    call :sort %numbers%
    echo 排序后數組為: %ret%
pause
goto :eof

:sort
    set num=%1
    set str=%*
    for %%i in (%*) do if !num! gtr %%i set num=%%i
    set ret=%ret% %num%
    if not "!str:%num%=!" == "" call :sort !str:%num%=!
goto :eof