批处理倒计时(全屏)

@echo off
echo exit|%comspec% /k prompt e 100 b4 00 b0 12 cd 10 b0 03 cd 10 cd 20 $_g$_q$_|debug>nul

chcp 437>nul
graftabl 936>nul

set all=20
:start
if "%all%"=="0" goto end
cls
set /a all=%all%-1
echo.
echo.
echo.
echo.
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo %all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%%all%
echo wscript.sleep 500>>ri.vbs &call ri.vbs &del ri.vbs
goto start
:end
cls
echo the end
pause