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@echo off&setlocal enabledelayedexpansion set /p m=要随机选取的文件数量 (for %%a in (a\*.txt b\*.txt) do ( echo !random!!random!!random!!random!!random!%%a set /a n+=1,sort=n%%5+1,"m+=^!((m-n)>>31)*(n-m)" ))>tmp for /f "skip=%m% delims=" %%a in ("sort /+%sort% tmp") do ( copy %%~sa c\ ) del tmp复制代码
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