如何在.NET中进行对象的深层复制? [英] How do you do a deep copy of an object in .NET?
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问题描述
我想要一个真实的深拷贝。在Java中,这很容易,但是如何在C#中实现呢?
I want a true deep copy. In Java, this was easy, but how do you do it in C#?
推荐答案
我已经看到了几种不同的方法这,但是我使用这样的通用实用程序方法:
I've seen a few different approaches to this, but I use a generic utility method as such:
public static T DeepClone<T>(this T obj)
{
using (var ms = new MemoryStream())
{
var formatter = new BinaryFormatter();
formatter.Serialize(ms, obj);
ms.Position = 0;
return (T) formatter.Deserialize(ms);
}
}
注意:
- 您的课程必须标记为
[可序列化]
才能正常工作。 -
您的源文件必须包含以下代码:
- Your class MUST be marked as
[Serializable]
for this to work. Your source file must include the following code:
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
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