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来个简单的 PS用法自查

(ls -Rec | ? { $_ -is [IO.DirectoryInfo] }).FullName | Foreach {
	$Jpg = ls $_\IMG*.jpg;
	if ($Jpg) {
		if ($Jpg[0]) { Ren $Jpg[0].FullName -NewName '机台照.jpg' -Force -ea 'SilentlyContinue' }
		if ($Jpg[-2]) { Ren $Jpg[-2].FullName -NewName '全景.jpg' -Force -ea 'SilentlyContinue' }
		if ($Jpg[-1]) { Ren $Jpg[-1].FullName -NewName '喷漆.jpg' -Force -ea 'SilentlyContinue' }

		if ($Jpg.Count -gt 3) {
			$n = 0;
			For ($i = 1; $i -lt $Jpg.Count - 2; $i++) {
				Ren $Jpg[$i].FullName -NewName ([String]::Concat("$n", '-', ($n + 5), 'm.jpg'));
				$n += 5;
			}
		}
	}
}
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