如何把byte[]的数据写入到文件中

Question

FileStream fs = new FileStream(sfd_cps.FileName, FileMode.OpenOrCreate, FileAccess.Write);
                StreamWriter m_streamWriter = new StreamWriter(fs, Encoding.UTF8);
                m_streamWriter.Flush();
                m_streamWriter.BaseStream.Seek(0, SeekOrigin.Begin);
                m_streamWriter.Write("这里只接收字符串");
                m_streamWriter.Flush();
                m_streamWriter.Close();//m_streamWriter.Write不接收byte[]型，又不想把byte[]转成字符串，有什么方法可以保存成文件？

Answer 1

[C#]
public override void Write(
   byte[] array,
   int offset,
   int count
);
用fs.Write(yourByts, offset, count);

Answer 2

using System;
using System.IO;class BinaryRW
{
    static void Main()
    {
        const int arrayLength = 1000;        // Create random data to write to the stream.
        byte[] dataArray = new byte[arrayLength];
        new Random().NextBytes(dataArray);        BinaryWriter binWriter = new BinaryWriter(new MemoryStream());        // Write the data to the stream.
        Console.WriteLine("Writing the data.");
        binWriter.Write(dataArray);        // Create the reader using the stream from the writer.
        BinaryReader binReader = 
            new BinaryReader(binWriter.BaseStream);        // Set Position to the beginning of the stream.
        binReader.BaseStream.Position = 0;        // Read and verify the data.
        byte[] verifyArray = binReader.ReadBytes(arrayLength);
        if(verifyArray.Length != arrayLength)
        {
            Console.WriteLine("Error writing the data.");
            return;
        }
        for(int i = 0; i < arrayLength; i++)
        {
            if(verifyArray[i] != dataArray[i])
            {
                Console.WriteLine("Error writing the data.");
                return;
            }
        }
        Console.WriteLine("The data was written and verified.");
    }
}