读取块中的二进制文件 [英] Read Binary File in Chunks

问题描述

如何在 C# 中以 5 MiB 块读取文件?

How do I read a file in 5 MiB chunks in C#?

推荐答案

您可以使用 FileStream 读取二进制文件，然后对其进行处理.举个例子:

You can use a FileStream to read a binary file then do your processing on it. Here's a example:

using (var inFileSteam = new FileStream(@"C:\path\to\file.bin", FileMode.Open))
{
    byte[] buffer = new byte[5 * 1024 * 1024]; // 5MB in bytes is 5 * 2^20
    int bytesRead = inFileSteam.Read(buffer, 0, buffer.Length);

    while (bytesRead > 0)
    {
        for (int i = 0; i < bytesRead; i++)
        {
            if (buffer[i] == 0x28) // 0010 1000 in binary
            {
                // replace for example or any other manipulation
                buffer[i] = 0x00;
            }
        }

        outFileStream.Write(buffer, 0, bytesRead);

        bytesRead = inFileSteam.Read(buffer, 0, buffer.Length);
    }
}

这篇关于读取块中的二进制文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！