修改if %count%==20 goto finish改变秒数
CMD：
mode con: cols=80 lines=25
color 4f
title Please Wait
SET /P var=Progress counter : <NUL
set count=0
:loop
PING -n 2 127.0.0.1 >NUL 2>&1
call :printline .
set /a count=count+1
if %count%==20 goto finish
goto loop
:printline
REM Print text passed to sub without a carriage return.
REM Sets line variable in case %1 intereferes with redirect
set line=%1
set /p var=%line%<NUL
exit /b
:finish
cls
color 0f
title Finished
mode con: cols=80 lines=25
echo Thankyou, all done now.
pause
exit /b