中国DOS联盟

@echo off
title made by 523066680 2008-08-08
::这一版本由www.cn-dos.net & www.bathome.cn 成员523066680编辑
setlocal enabledelayedexpansion
color 0a
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:a
for /f %%a in ('time /t') do set t0=%%a&set /a t1=!t0:~0,1!,t2=!t0:~1,1!
for /l %%a in (1,1,5) do (
set hang%%a=!%t1%%%a! !%t2%%%a!  + !%time:~3,1%%%a! !%time:~4,1%%%a!  + !%time:~6,1%%%a! !%time:~7,1%%%a!
)
ping -n 1 -w 500 0.0.0.1>nul
cls
echo,
echo,
echo,   %hang1%
echo,    %hang2%
echo,     %hang3%
echo,      %hang4%
echo,       %hang5%
echo,
goto :a

@echo off
setlocal enabledelayedexpansion
for /l %%a in (1,1,10) do (
set /a  n=%%a+%%a
echo !n!
)
pause

@echo off
for /l %%a in (1,1,10) do (
set /a n=%%a+%%a
call,echo,%%n%%
)
pause

@echo off
setlocal enabledelayedexpansion
for /l %%a in (1,1,10) do (
echo  %time%  !time!

ping -n 1 127.1>nul
)
pause

@echo off
setlocal enabledelayedexpansion
set n=0
set /a n+=1 &echo %n% &echo !n!
::上面的句子虽然用了&但始终是同一句，%n%还是代表句子前面建立的n.!n!会是+1后的n
echo %n%
::这是下一句，%n%已经是改变后的了。
pause