C#实现对象的深拷贝

public static T CreateDeepCopy<T>(T obj)
        {
            T t;
            MemoryStream memoryStream = new MemoryStream();
            BinaryFormatter formatter = new BinaryFormatter();
            formatter.Serialize(memoryStream, obj);
            memoryStream.Position = 0;
            t = (T)formatter.Deserialize(memoryStream);
            return t;
        }