C# - 搜索模式的二进制文件

using System;
using System.IO;

public class BinarySearch
{
    public static void Main()
    {
        string fileName = "example.bin";
        byte[] pattern = new byte[] { 0x12, 0x34, 0x56, 0x78 };

        int index = SearchBinaryFile(fileName, pattern);

        if (index >= 0)
        {
            Console.WriteLine("Pattern found at index {0}", index);
        }
        else
        {
            Console.WriteLine("Pattern not found");
        }
    }

    public static int SearchBinaryFile(string fileName, byte[] pattern)
    {
        using (FileStream fs = new FileStream(fileName, FileMode.Open))
        {
            using (BinaryReader br = new BinaryReader(fs))
            {
                byte[] buffer = new byte[fs.Length];
                int bytesRead = br.Read(buffer, 0, (int)fs.Length);

                int index = Array.IndexOf(buffer, pattern);
                return index;
            }
        }
    }
}