set/a i+=1
rem 指针=i 尾指针=j
set/a j=i-30
set line%i%=%空格%^%字符%
FOR /L %%v IN (%i%,-1,%j%) DO echo.!line%%v!
::ping /n 127.1>nul
goto a
@echo off
:: Code by hxuan999 2006-11-12 CMD@XP
:: 出处：http://www.cn-dos.net/forum/viewthread.php?tid=24418
::mode con cols=80
setlocal ENABLEDELAYEDEXPANSION
color 02
goto BEGIN
goto :eof
::function mt_rand "a" "b"
:mt_rand
::(
set a=%~1
set b=%~2
set /a _mt_rand=(!random!%%(%b%-%a%))+%a%
exit /b 0
::)
:BEGIN
::{--
SET iWidth=80
SET iDensity=6
SET sText="#$&'()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz{|}~
SET sText=!sText:"=!
set /A iText=90-1
for /l %%i in (1,1,%iWidth%) do (
set aDown%%i=0
)
:loop
for /l %%I in (1,1,%iWidth%) do (
set /a aDown%%I-=1
if !aDown%%I! LSS 0 (
call :mt_rand "0" "%iDensity%"&&set aArrow%%I=!_mt_rand!
call :mt_rand "10" "25"&&set aDown%%I=!_mt_rand!
)
if !aArrow%%I! EQU 1 (
call :mt_rand "0" "%iText%"&&(FOR %%M IN ("!_mt_rand!") DO SET aa=!sText:~%%~M,1!)
set /p=!aa!<NUL
) else (
set /p= <NUL
)
)
goto loop
::--}
:exit
exit /b 0
@echo off
:: Code by hxuan999 2006-11-12 CMD@XP
:: 出处：http://www.cn-dos.net/forum/viewthread.php?tid=24418
setlocal ENABLEDELAYEDEXPANSION
color 02
for /l %%i in (1,1,80) do (
set Down%%i=0
)
:loop
for /l %%j in (1,1,80) do (
set /a Down%%j-=1
if !down%%j! LSS 0 (
set /a Arrow%%j=!random!%%4
set /a Down%%j=!random!%%15+10
)
if "!Arrow%%j!" == "1" (
set /a chr=!random!%%2
set /p=!chr!<NUL
) else (
set /p= <NUL
)
)
goto loop
goto :eof
@echo off
:: Code by newaifi 2006-11-16 CMD@XP
:: 出处：http://www.cn-dos.net/forum/viewthread.php?tid=24418
setlocal ENABLEDELAYEDEXPANSION
for /l %%i in (1,1,80) do (
set Down%%i=0
)
for /l %%i in (0) do (
set line=
for /l %%j in (1,1,80) do (
set /a Down%%j-=1
call set x=!down%%j!
if !x! LSS 0 (
