Unity 深拷贝

using System.IO;
using System.Xml.Serialization;
using UnityEngine;

void Start()
{
    List<List<Vector3>> lData = new List<List<Vector3>>();
    List<Vector3> pList = new List<Vector3>();
    pList.Add(new Vector3(0.3f, 0.6f, 0));
    pList.Add(new Vector3(1.2f, 1.8f, 0));

    List<Vector3> pList1 = Clone<List<Vector3>>(pList);
    lData.Add(pList1);
    //lData.Add(pList);

    pList.RemoveAt(0);

    List<Vector3> l = lData[0];
    print("----count :" + l.Count);
}

public static T Clone<T>(T RealObject)
{
    using (System.IO.Stream stream = new MemoryStream())
    {
        XmlSerializer serializer = new XmlSerializer(typeof(T));
        serializer.Serialize(stream, RealObject);
        stream.Seek(0, SeekOrigin.Begin);
        return (T)serializer.Deserialize(stream);
    }
}