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我正在尝试在Powershell中编辑一些xml.这是我正在做的事情:

$path = 'C:\Projects\NuGetTestPackage\NuGetTestPackage'
$projName = 'NuGetTestPackage1.csproj'
cd $path
$file = gi $projName
$pattern = 'TextTemplatingFileGenerator'
$xml = [xml](gc $file)
$node = [xml] $xml.Project.ItemGroup.None.Generator | 
    Where { $_.Project.ItemGroup.None.Generator -eq $pattern } |
    Foreach {$_.Project.ItemGroup.None.Generator = ''}
$xml.Save($file.Fullname)

这是XML:

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProductVersion>
    </ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{E750ACF1-17B5-4D83-8FC8-5A4488193099}</ProjectGuid>
    <ProjectTypeGuids>{E53F8FEA-EAE0-44A6-8774-FFD645390401};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>NuGetTestPackage</RootNamespace>
    <AssemblyName>NuGetTestPackage</AssemblyName>
    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
    <MvcBuildViews>false</MvcBuildViews>
    <UseIISExpress>false</UseIISExpress>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize> …