Powershell：按子节点值的元素对xml进行排序

Question

如何使用 Powershell 按“元组”列表（键入的“整数”）的第二个节点对该 xml 进行降序排序。

因此结果将是 xml，但第一个元素将是 COMPUTERSF34，然后是 COMPUTER123..

   <Result>
                <Tuple>
                    <Answer type="string">COMPUTERSF34</Answer>
                    <Answer type="integer">93</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">NYCCOMPUTER01</Answer>
                    <Answer type="integer">44</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER_05</Answer>
                    <Answer type="integer">45</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER56</Answer>
                    <Answer type="integer">38</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER123</Answer>
                    <Answer type="integer">51</Answer>
                </Tuple>
    ...
    </Result>

Answer 1

尝试这个：

$xml = [xml]@'
   <Result>
                <Tuple>
                    <Answer type="string">COMPUTERSF34</Answer>
                    <Answer type="integer">93</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">NYCCOMPUTER01</Answer>
                    <Answer type="integer">44</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER_05</Answer>
                    <Answer type="integer">45</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER56</Answer>
                    <Answer type="integer">38</Answer>
                </Tuple>
                <Tuple>
                    <Answer type="string">COMPUTER123</Answer>
                    <Answer type="integer">51</Answer>
                </Tuple>
    </Result>
'@
$sorted = $xml.Result.Tuple | sort {[int]$_.Answer[1].'#text'} -desc
$lastChild = $sorted[-1]
$sorted[0..($sorted.Length-2)] | Foreach {$xml.Result.InsertBefore($_,$lastChild)}
$xml.Save('c:\foo.xml')

技巧是获取每个已排序的节点（最后一个除外）并将其插入到新的（排序后）最后一个节点之前。