c# 使用泛型序列化

static void Serialize<T>(T instance , string fileName)
{
    using(XmlWriter writer = new XmlWriter(filename , Encoding.UTF8))
    {
          XmlSerializer serializer = new  XmlSerializer(typeof(T));
          serializer.Serialize(writer , instance);
    }
}

Serialize<Order>(order , "order.xml");