使用C#从XML中批量删除指定节点

using System.Collections.Generic;
using System.Xml.Linq;
using System.Xml.XPath;

namespace ConsoleApp11
{
    class Program
    {
        static void Main(string[] args)
        {
            XElement Root = XElement.Load("foo.xml");

            IEnumerable<XElement> Selected = Root.XPathSelectElements("terms/term[userId!=2000]");
            Selected.Remove();

            Root.Save("foo-save.xml");
        }
    }
}

<grimoire>
  <terms>
    <term>
      <gameId>...</gameId>
      <userId>2000</userId>
      <language>...</language>
      <timestamp>...</timestamp>
      <pattern>...</pattern>
      <text>...</text>
    </term>
  <terms>
<grimoire>