实现方法：
1.利用二进制序列化和反序列化实现，需要注意的时，这个方法使用了序列化，所以使用此方的对象必须是可序列化的。
public GoodItem CloneItem() { MemoryStream stream = new MemoryStream(); BinaryFormatter formatter = new BinaryFormatter(); formatter.Serialize(stream, this); stream.Position = 0; return formatter.Deserialize(stream) as GoodItem; }
2.利用xml序列化和反序列化实现
public T DeepCopy<T>(T obj) { object retval; MemoryStream ms = new MemoryStream() XmlSerializer xml = new XmlSerializer(typeof(T)); xml.Serialize(ms, obj); ms.Seek(0, SeekOrigin.Begin); retval = xml.Deserialize(ms); ms.Close(); return (T)retval; }
3.利用反射实现
public static T DeepCopy<T>(T obj) { //如果是字符串或值类型则直接返回 if (obj is string || obj.GetType().IsValueType) return obj; object retval = Activator.CreateInstance(obj.GetType()); FieldInfo[] fields = obj.GetType().GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static); foreach (FieldInfo field in fields) { try { field.SetValue(retval, DeepCopy(field.GetValue(obj))); } catch { } } return (T)retval; }
