//二进制转换为文件
private void DownLoadFile(string sFilePath, byte[] FileBytes)
{
FileStream fs = new FileStream(sFilePath, FileMode.CreateNew);
BinaryWriter bw = new BinaryWriter(fs, Encoding.GetEncoding("gb2312"));
bw.Write(FileBytes, 0, FileBytes.Length);
bw.Close();
fs.Close();
}