随风

@echo off
for /f "tokens=1* delims=:" %%a in ('findstr /n . a.txt') do (
   set .%%a=%%b&set /a n=%%a
)
:loop
   set /a w=%random%%%n+1
   if not defined .%w% goto loop
   call echo %%.%w%%%
   pause>nul
goto loop
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[ 本帖最后由 随风 于 2009-5-6 21:56 编辑 ]