C# 實現圖片文件到數據流，再到圖片文件的轉換

//----引入必要的命名空間
using System.IO;
using System.Drawing.Imaging;

//----代碼部分----//
private byte[] photo;//公用緩沖區

public string SourFilePath;//源圖片文件路徑

public string ObjFilePath;//目標圖片路徑

//文件到流的轉換
public int FileToStream()

{

	Image img = new Bitmap(SourFilePath);

	MemoryStream stream = new MemoryStream();

	img.Save(stream, ImageFormat.Bmp);

	BinaryReader br = new BinaryReader(stream);

	photo = stream.ToArray();

	stream.Close();

	return 0;

}

//根據流顯圖
public Image ShowPic()
{

	byte[] bytes = photo;

	MemoryStream ms = new MemoryStream(bytes);

	ms.Position = 0;

	Image img = Image.FromStream(ms);

	ms.Close();

	return img;

}

//反向轉換
public int StreamToFile()
{

	byte[] bytes = photo;

	FileStream fs = new FileStream(ObjFilePath, FileMode.Create, FileAccess.Write);

	fs.Write(bytes, 0, bytes.Length);

	fs.Flush();

	fs.Close();

	return 0;
}