WHY

test.ps1

function formatSize($n){
    if($n -ge 1gb){
        $s = ($n/1gb).ToString('0.0') + 'GB'
    }elseif($n -ge 1mb){
        $s = ($n/1mb).ToString('0.0') + 'MB'
    }elseif($n -ge 1kb){
        $s = ($n/1kb).ToString('0.0') + 'KB'
    }else {$s = '' + $n + 'B'}
    return '共计' + $s
}
$arr = dir 'D:\Test\*' -Recurse -Force | ?{ $_ -is [IO.FileInfo] }
$arr | group Extension | %{'' + $_.Count + '个' + $(if($_.Name){$_.Name -replace '\.'}else{'无扩展名'})} > D:\结果.Log
formatSize(($arr | measure Length -Sum).Sum) >> D:\结果.Log
复制代码