<# :
cls
@echo off
set info=互助互利,支付宝扫码头像,感谢打赏
rem 有问题,可加QQ956535081及时沟通
title %info%
set "rootpath=%~dp0"
if "%rootpath:~-1%" equ "\" (set "rootpath=%rootpath:~,-1%")
cd /d "%rootpath%"
powershell -NoProfile -ExecutionPolicy bypass "Invoke-Command -ScriptBlock ([ScriptBlock]::Create([IO.File]::ReadAllText('%~f0',[Text.Encoding]::Default))) -Args '%rootpath%'"
echo;%info%
pause
exit
#>

$n=19;
$files=@(dir -liter $args[0]|?{(@('.txt') -contains $_.Extension) -and ($_ -is [System.IO.FileInfo])});
for($i=0;$i -lt $files.length;$i++){
    write-host $files[$i].Name;
    $text=[IO.File]::ReadAllText($files[$i].FullName, [Text.Encoding]::Default);
    $text=$text -replace '(?<=\x0C)\s+$','';
    $text=$text -split '\n';
    if($text.length -ge $n){$text[$n-1]=$text[$n-1] -replace '\x0C','';};
    $text=$text -join "`n";
    [IO.File]::WriteAllText($files[$i].FullName, $text, [Text.Encoding]::Default);
}
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