[文件操作] 请问批处理如何列出当前文件夹中有多少空文件夹？

@echo off
(for /d %%a in (*) do (
    pushd "%%a"
    dir /b|findstr .>nul 2>nul
    if errorlevel 1 echo,%%a
    popd
))>list.txt
pause
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#&cls&@powershell "iex (gc '%~0'|out-string)"&pause&exit/b
$folder="C:\Users\lenovo\Desktop\practice"
dir $folder -dir -rec |?{$_.getfiles().count -eq 0}|select fullname
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