77七

@echo off
set /a n=0
setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /b /a-d *.wav') do (
        set /a n+=1
        set "#!n!=%%i"
)
:run
set /a "m=%random%%%%n%+1"
echo play !#%m%!
pause
goto :run
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是这个意思吗？