/// <summary>

/// 工具类：文件与二进制流间的转换

/// </summary>

public class FileBinaryConvertHelper

{

/// <summary>

/// 将文件转换为byte数组

/// </summary>

/// <param name="path">文件地址</param>

/// <returns>转换后的byte数组</returns>

public static byte[] File2Bytes(string path)

{

if (!System.IO.File.Exists(path))

{

return new byte[0];

}

FileInfo fi = new FileInfo(path);

byte[] buff = new byte[fi.Length];

FileStream fs = fi.OpenRead();

fs.Read(buff, 0, Convert.ToInt32(fs.Length));

fs.Close();

return buff;

}

/// <summary>

/// 将byte数组转换为文件并保存到指定地址

/// </summary>

/// <param name="buff">byte数组</param>

/// <param name="savepath">保存地址</param>

public static void Bytes2File(byte[] buff, string savepath)

{

if (System.IO.File.Exists(savepath))

{

System.IO.File.Delete(savepath);

}

FileStream fs = new FileStream(savepath, FileMode.CreateNew);

BinaryWriter bw = new BinaryWriter(fs);

bw.Write(buff, 0, buff.Length);

bw.Close();

fs.Close();

}

}