将文件转换成byte[] 数组

/// <summary>
/// 将文件转换成byte[] 数组
/// </summary>
/// <param name="fileUrl">文件路径文件名称</param>
/// <returns>byte[]</returns>
protected byte[] GetFileData(string fileUrl)
{
FileStream fs = new FileStream(fileUrl, FileMode.Open, FileAccess.Read);
try
{
byte[] buffur = new byte[fs.Length];
fs.Read(buffur, 0, (int)fs.Length);

return buffur;
}
catch (Exception ex)
{
//MessageBoxHelper.ShowPrompt(ex.Message);
return null;
}
finally
{
if (fs != null)
{

//关闭资源
fs.Close();
}
}
}

/// <summary>
/// 将文件转换成byte[] 数组
/// </summary>
/// <param name="fileUrl">文件路径文件名称</param>
/// <returns>byte[]</returns>

protected byte[] AuthGetFileData(string fileUrl)
{
using (FileStream fs = new FileStream(fileUrl, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
byte[] buffur = new byte[fs.Length];
using (BinaryWriter bw = new BinaryWriter(fs))
{
bw.Write(buffur);
bw.Close();
}
return buffur;
}
}