@{}#? 2>nul&pause&powershell -c "type -literalpath '%~f0'|out-string|iex"&pause&exit/b
'';gc -Encoding utf8 'list.txt' |foreach{
"`n开始处理"
$m=[regex]::match($_,'(\+@#@\+)+')

if($m.success){
$fname=$_.substring(0,$m.index)
$fdata=$_.substring($m.index+$m.length)
}else{
$fname=$_
$fdata=""
}

if(($fname -ceq "") -and ($fdata -ceq "")){
echo "这一行是空行"
}else{
if(($fname -ceq '') -and ($m.length -gt 5)){$fname='+@#@+'}
if($fname -ceq ''){
echo '空白的文件名 , 开始添加'
$fname='□'
}
if($fname.length -gt 100){
echo '文件名太长 , 开始截取'
$fname=$fname.substring(0,100)
}
$fname=$fname.split([io.path]::GetInvalidFileNameChars()) -join '□'
$fname='+@#@+'+$fname

if(test-path  -LiteralPath ($pwd.path+"\"+$fname)){
echo '存在同名文件 , 开始调整'
}
$i=$true;$j=1;$k="";while($i){
if(test-path  -LiteralPath ($pwd.path+"\$k"+$fname)){
$j++
$k="[$j]"
}else{$i=$false}
}

if($fdata -ceq ""){
echo ("空的数据流`n将输出到空文件`n"+"$k"+$fname)
[io.file]::WriteAllText($pwd.path+"\$k"+$fname,"")
}else{
echo ("将输出到文件`n"+"$k"+$fname)
[io.file]::WriteAllBytes($pwd.path+"\$k"+$fname,[convert]::FromBase64String($fdata))
}

}
$null
}
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@echo off &(md "解码结果目录" &cd "解码结果目录") 2>nul
powershell "foreach($l in [io.file]::ReadLines('..\list.txt')){$n=$l.indexof('+@#@+');if($n -le 0){continue};[io.file]::writeAlltext($l.substring(0,$n)+'.b64',$l.substring($n+5))}"
for /f "delims=" %%F in ('dir /b/a-d *.b64') do certutil -f -decode "%%F" "%%~nF"
del/q *.b64 2>nul
pause&exit/b
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