内存流和文件流之间的区别 [英] difference between memory stream and filestream

问题描述

在序列化期间，我们可以使用内存流或文件流.

During the serialization we can use either memory stream or file stream.

这两者之间的基本区别是什么?内存流是什么意思?

What is the basic difference between these two? What does memory stream mean?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization.Formatters.Binary;

namespace Serilization
{
    class Program
    {
        static void Main(string[] args)
        {
            MemoryStream aStream = new MemoryStream();
            BinaryFormatter aBinaryFormat = new BinaryFormatter();
            aBinaryFormat.Serialize(aStream, person);
            aStream.Close();
        }
    }
}

推荐答案

流是字节的表示形式.这两个类都是从Stream类派生的，该类从定义上是抽象的.

Stream is a representation of bytes. Both these classes derive from the Stream class which is abstract by definition.

顾名思义，FileStream读写文件，而MemoryStream读写内存.因此，它与流的存储位置有关.

As the name suggests, a FileStream reads and writes to a file whereas a MemoryStream reads and writes to the memory. So it relates to where the stream is stored.

现在，这取决于您打算如何同时使用这两种方式.例如:假设您要从数据库中读取二进制数据，则需要使用MemoryStream.但是，如果要读取系统上的文件，则可以使用FileStream.

Now it depends how you plan to use both of these. For eg: Let us assume you want to read binary data from the database, you would go in for a MemoryStream. However if you want to read a file on your system, you would go in for a FileStream.

MemoryStream的一个快速优势是无需在应用程序中创建临时缓冲区和文件.

One quick advantage of a MemoryStream is that there is not need to create temporary buffers and files in an application.

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