@echo off
for %%a in ( *.mp3 ) do ( 
 for /f "tokens=1,2 delims=-." %%i in ( "%%a" ) do ( ren "%%a" "%%j-%%i.mp3" )
)
pause
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@echo off
for %%a in ( *.mp3 ) do ( 
 for /f "tokens=1,2 delims=-." %%i in ( "%%a" ) do ( ren "%%a" "%%j - %%i.mp3" )
)
pause
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@echo off
for /f "delims=" %%a in ('dir /b /a-d *.mp3 ^| findstr /c:" - "') do ( 
    for /f "tokens=1,2 delims=-. " %%i in ("%%a") do (
        ren "%%a" "%%j - %%i.mp3"
    )
)
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@echo off&setlocal EnableDelayedExpansion  
for /f "tokens=1,2 delims=-." %%a in ('dir /b *.mp3') do (
set var=%%a
::去除var变量左边第一个空格
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
if "!var:~0,1!"==" " set var=!var:~1!
::去除var变量右边第一个空格
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
if "!var:~-1!"==" " set var=!var:~0,-1!
set jar=%%b
::去除jar变量左边第一个空格
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
if "!jar:~0,1!"==" " set jar=!jar:~1!
::去除jar变量右边第一个空格
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
if "!jar:~-1!"==" " set jar=!jar:~0,-1!
::重命名文件
ren "%%a-%%b.mp3" "!jar!-!var!.mp3"
)
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@echo off
setlocal EnableDelayedExpansion  
for /f "tokens=1,2 delims=-." %%a in ( 'dir /b *.mp3' ) do ( 
set vara=%%a && set varb=%%b
if "!vara:~0,1!"==" " set vara=!vara:~1!
if "!vara:~-1!"==" " set vara=!vara:~0,-1!
if "!varb:~0,1!"==" " set varb=!varb:~1!
if "!varb:~-1!"==" " set varb=!varb:~0,-1!
ren "%%a-%%b.mp3" "!varb! - !vara!.mp3"
)
pause
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@echo off
powershell –NoProfile –ExecutionPolicy Bypass ^
    Get-ChildItem '* - *.mp3' ^| ForEach-Object {;^
    $strA = $_.BaseName.Split('-.')[0].Trim();^
    $strB = $_.BaseName.Split('-.')[1].Trim();^
    $NewName = $strB + ' - ' + $strA + $_.Extension;^
    Rename-Item $_.Name $NewName;^
}
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@echo off
for /f "delims=" %%a in ('dir /b /a-d *-*.mp3') do (
     for /f "tokens=1* delims=-" %%i in ("%%a") do (
          for /f "tokens=*" %%m in ("%%~nxi") do (
               for /f "tokens=*" %%n in ("%%~nj") do (
                    ren "%%a" "%%~nxn - %%~nxm%%~xj"
               )
          )
     )
)
pausee
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