WHY

这样试下：

@echo off & setlocal enabledelayedexpansion
for /f "delims=" %%i in ('dir /b *.mp3') do (
    for %%j in ("*-%%~ni*.krc") do (
        set "s=%%~nj"
        for /f "delims=/" %%k in ("!s:-%%~ni=/!") do ren "%%i" "%%k%%~xi"
    )
)
pause
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