@echo off
set "ext= sln csproj"
for /f "delims=" %%a in (‘dir /b/s/a-d *.*‘) do (
set .=
if /i not "%%~nxa"=="%~nx0" (
for %%i in (%ext%) do if /i "%%~xa"==".%%i" set .=.
) else set .=.
if not defined . del /a/q/f "%%a"
)

删除指定文件夹下的空文件夹，包括子目录批处理

@echo off
:h
setlocal enabledelayedexpansion

for /d %%a in (%1*) do (
set p="%%a\"

set p=!p:.\"=..\"!
rd !p! || ( call :h !p! & rd !p! )
)