gawk

@echo off
setlocal enabledelayedexpansion
set "mypath=E:\成品\1"
for /r "%mypath%" %%a in (.) do (
    set n=0
    for /f "delims=" %%b in ('dir /a-d /b "%%~dpna\" 2^>nul') do (
        set /a n+=1
        set "num=00!n!"
        ren "%%~dpna\%%b" "%%~na-!num:~-3!%%~xb"
    )
)
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