@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /s /ar /b 路径\*.*') do ( 
     set "str=%%~ni"
     echo !str:~,4!|findstr /i "[^a-z]">nul&&set "no=a"
     echo !str:~-4!|findstr "[^0-9]">nul&&set "no=a"
     if not defined no echo %%i&set "no="
)
pause>nul
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@echo off 
for /f "tokens=*" %%a in ('dir /a:r /b') do (
  echo %%~na|findstr "^[a-z][a-z][a-z][a-z].*[0-9][0-9][0-9][0-9]$"
)
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@echo off 
for /f "tokens=*" %%a in ('dir /a:r /b 2^>nul^|findstr /i "^[a-z][a-z][a-z][a-z].*[0-9][0-9][0-9][0-9]$"') do echo "%%i"
pause
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