刪除節點匹配特定屬性值的

Question

我有類似XML數據：

<objects> 
    <object> 
    <property name="a" /> 
    <property name="b" /> 
    <property name="hasErrors" /> 
    <property name="data" /> 
     <property/> 
     <property/> 
    </property> 
    </object> 
</objects> 

在PowerShell中，我將如何刪除有屬性name特定值的節點？更具體地說，我想刪除名稱爲「hasErrors」和「data」的節點及其子節點（如果有的話）。

Answer 1

這個片段應該幫助你，我使用XPath匹配條件：

[xml]$data = @" 
<objects> 
    <object> 
    <property name="a" /> 
    <property name="b" /> 
    <property name="hasErrors" /> 
    <property name="data" /> 
     <property/> 
     <property/> 
    </object> 
</objects> 
"@ 

$data.SelectNodes("//property[@name = 'data' or @name = 'hasErrors']") | % {$_.ParentNode.removechild($_) } | Out-Null 
#to view properties,the empty nodes aren't visible as no value is inside.You can confirm them with count or after saving 
$data.objects.object.property 
$data.Save("C:\yourpath\mydata.xml")