虽然标准做法是实现
ICloneable接口（在此进行描述，所以我不会反驳），但这是我之前在The Code
Project上发现的一个不错的深克隆对象复印机，并将其合并到我们的资料中。
如在其他地方提到的，它确实要求您的对象可序列化。
using System;using System.IO;using System.Runtime.Serialization;using System.Runtime.Serialization.Formatters.Binary;/// <summary>/// Reference Article http://www.preproject.com/KB/tips/SerializedObjectCloner.aspx/// Provides a method for performing a deep copy of an object./// Binary Serialization is used to perform the copy./// </summary>public static class ObjectCopier{ /// <summary> /// Perform a deep Copy of the object. /// </summary> /// <typeparam name="T">The type of object being copied.</typeparam> /// <param name="source">The object instance to copy.</param> /// <returns>The copied object.</returns> public static T Clone<T>(T source) { if (!typeof(T).IsSerializable) { throw new ArgumentException("The type must be serializable.", nameof(source)); } // Don't serialize a null object, simply return the default for that object if (Object.ReferenceEquals(source, null)) { return default(T); } IFormatter formatter = new BinaryFormatter(); Stream stream = new MemoryStream(); using (stream) { formatter.Serialize(stream, source); stream.Seek(0, SeekOrigin.Begin); return (T)formatter.Deserialize(stream); } }}这个想法是先序列化您的对象，然后反序列化为一个新的对象。这样做的好处是，当对象变得太复杂时，您不必担心克隆所有内容。
并使用扩展方法（也来自最初引用的源）：
如果您更喜欢使用C＃3.0
的新扩展方法，请将方法更改为具有以下签名：
public static T Clone<T>(this T source){ //...}现在，方法调用简单地变为
objectBeingCloned.Clone();。
编辑
（2015年1月10日）以为我会重新审视此事，我最近提到开始使用（Newtonsoft）Json来做到这一点，它应该更轻巧，并且避免了[Serializable]标签的开销。（ NB @atconway在注释中指出，不使用JSON方法克隆私有成员）
/// <summary>/// Perform a deep Copy of the object, using Json as a serialisation method. NOTE: Private members are not cloned using this method./// </summary>/// <typeparam name="T">The type of object being copied.</typeparam>/// <param name="source">The object instance to copy.</param>/// <returns>The copied object.</returns>public static T CloneJson<T>(this T source){ // Don't serialize a null object, simply return the default for that object if (Object.ReferenceEquals(source, null)) { return default(T); } // initialize inner objects individually // for example in default constructor some list property initialized with some values, // but in 'source' these items are cleaned - // without ObjectCreationHandling.Replace default constructor values will be added to result var deserializeSettings = new JsonSerializerSettings {ObjectCreationHandling = ObjectCreationHandling.Replace}; return JsonConvert.DeserializeObject<T>(JsonConvert.SerializeObject(source), deserializeSettings);}
