如何在c#中读取文件的结尾？

FileStream fileStream = new FileStream("文件路径", FileMode.Open);
fileStream.Seek(0, SeekOrigin.End);

BinaryReader binaryReader = new BinaryReader(fileStream);

byte[] buffer = binaryReader.ReadBytes(文件结尾的字节数);

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string filePath = "文件路径";

        using (FileStream fileStream = new FileStream(filePath, FileMode.Open))
        {
            fileStream.Seek(0, SeekOrigin.End);

            using (BinaryReader binaryReader = new BinaryReader(fileStream))
            {
                byte[] buffer = binaryReader.ReadBytes(文件结尾的字节数);

                // 处理读取到的文件结尾数据
            }
        }
    }
}