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@echo off set "ph=c:\windows" for /f "tokens=3" %%i in ('dir /a-d /s/-c "%ph%" 2^>nul^|findstr /iec:" 字节"') do set n=%%i set /a "s=%n:~,-3%/1024" if %s% geq 1 set /a size=%s%%n:~-3%/1024" echo %size% MB pause复制代码