C#如何将long类型数组写入二进制文件

using System;
using System.IO;

class Program
{
    static void Main()
    {
        long[] array = new long[] { 123456789, 987654321 };
        string fileName = "longArray.bin";

        WriteLongArrayToBinaryFile(array, fileName);
    }

    static void WriteLongArrayToBinaryFile(long[] array, string fileName)
    {
        using (FileStream fs = new FileStream(fileName, FileMode.Create))
        {
            using (BinaryWriter bw = new BinaryWriter(fs))
            {
                foreach (long value in array)
                {
                    bw.Write(value);
                }
            }
        }
    }
}