[问题求助] [已解决]PowerShell如何获取所有路径行中的公共部分？

$s = @'
C:\Users\Administrator\hello\A
C:\Users\Administrator\hello\B
C:\Users\Administrator\hello\B\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\A
C:\Users\Administrator\Desktop\Test0\DEF\B
C:\Users\Administrator\Desktop\Test0\DEF\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\2.txt
'@

$s -split "\r?\n" |
foreach {
        Split-Path $_
}
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$s = @'
C:\Users\Administrator\hello\A
C:\Users\Administrator\hello\B
C:\Users\Administrator\hello\B\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\A
C:\Users\Administrator\Desktop\Test0\DEF\B
C:\Users\Administrator\Desktop\Test0\DEF\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\2.txt
'@

$s -split "\r?\n" |
foreach {
        Split-Path $_
} | sort-object | Get-Unique
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$s=$s -split "\r?\n"
for($i=0;$i -lt $s.length;$i++){
if(!(gv a 2>$null)){$a=split-path $s[$i]}
if($s[$i+1] -notmatch [regex]::Escape($a)){$a+'\';rv a}
}
复制代码

$s = @'
C:\Users\Administrator\hello
C:\Users\Administrator\hello\B
C:\Users\Administrator\hello\C\a.bat
C:\Users\Administrator\hello\B\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\A
C:\Users\Administrator\Desktop\Test0\DEF\B
C:\Users\Administrator\Desktop\Test0\DEF\1.txt
C:\Users\Administrator\Desktop\Test0\DEF\2.txt
'@
$s = $s -split "\r?\n"
for ($i = 0; $i -lt $s.length; $i++)
{
        if (!(gv a 2>$null)) { $a = split-path $s[$i] }
        if ($s[$i + 1] -notmatch [regex]::Escape($a)) { $a + '\'; rv a }
}
复制代码

$s=$s -split "\r?\n"
for($i=0;$i -lt $s.length;$i++){
    if(!(gv a 2>$null)){
	for($j=0;$j -lt $s[$i+1].length;$j++){
	    if(($s[$i][0..$j] -join '') -ne ($s[$i+1][0..$j] -join '')){$a=$s[$i][0..($j-1)] -join '';break}
	}
    }
    if($s[$i+1] -notmatch [regex]::Escape($a)){$a;rv a}
}
复制代码