for_flr

gc mp3.csv|%{
  $s=$_.split(",")
  if(test-path $s[3]) {
    $new="{0}{1}{2}{3}{4}" -f  $s[0],"_",$s[2],"-",$s[3]
    ren $s[3] $new
  }
}
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for_flr

回复 7# 5i365

@echo off
cd /d "%~dp0"
for /f "tokens=1,3,4 delims=," %%a in (MP3.csv) do (
    if exist "%%b - %%c" ren "%%b - %%c" "%%a_%%b - %%c"
)
pause
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gc mp3.csv | %{
	$s = $_.split(",")
	$old ="{0}{1}{2}" -f $s[2]," - ",$s[3]
	if (test-path $old){
		$new = "{0}{1}{2}{3}{4}" -f $s[0],"_",$s[2]," - ",$s[3]
		ren $old $new
	}
}
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$a="{0}{1}{2}{3}" -f "hey,","man!"," what are you doing","?"
{0}{1}{2}{3}分别代表-f后面跟着的四个参数，参数之间用逗号隔开