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尝试写了个BAT以实现—／│＼刷屏按顺序变化

@echo off

set b=—／│＼
:xx
for %%i in (0 1 2 3) do call :b %%i
goto xx

pause

:b
ping -n 1 127.1 >nul
cls
echo %1
echo %b:~%1,1%
goto :eof

运行失败，应该是错在echo %b:~%1,1%这一句，请高人帮忙修正一下？

@echo off

set "b=—／│＼"

:xx

for  %%i in (0 1 2 3) do call :b %%i

goto xx

:b

ping -n 1 127.1 >nul

cls

echo %1

call,echo %%b:~%1,1%%

[ Last edited by zw19750516 on 2008-4-23 at 12:23 PM ]

call,echo %%b:~%1,1%% 这种用法巧妙..

实在想不到Call还有这种用法。。呵呵，领教报，谢谢

call太不可思意了