圖片與二進制流轉換

#region//圖片轉換為二進制流??
public?void?PictureToBinaryStream()??
{??
????//獲取當前程序運行路徑??
????string?path?=?Application.StartupPath;??
????//拼接成測試圖片路徑??
????string?fullPath?=?path?+?"\\images\\test.png";??
????//初始化類??
????Bitmap?bmp?=?new?Bitmap(Image.FromFile(fullPath));??
????MemoryStream?ms?=?new?MemoryStream();??
????bmp.Save(ms,?System.Drawing.Imaging.ImageFormat.Png);??
????ms.Flush();??
????//將二進制數據存到byte數字中??
????byte[]?bmpBytes?=?ms.ToArray();??
????//?richTextBox1.Text?=?Convert.ToBase64String(bmpBytes);??
????foreach?(var?item?in?bmpBytes)??
????{??
????????richTextBox1.Text?+=?item;??
????}??
????pictureBox1.Image?=?Image.FromStream(new?MemoryStream(bmpBytes));??
}??
#endregion??
?
#region//二進制流轉換成圖片??
public?void?BinaryStreamToPicture()??
{??
????string?url?=?@"http://php.weather.sina.com.cn/images/yb3/78_78/duoyun_0.png";??
????WebClient?client?=?new?WebClient();??
????byte[]?pageData?=?client.DownloadData(url);??
????//將二進制流數據轉換為圖片??
????pictureBox1.Image?=?Image.FromStream(new?MemoryStream(pageData));??
????Bitmap?bmp?=?new?Bitmap(new?MemoryStream(pageData));??
????string?path?=?Application.StartupPath;??
????string?fullPath?=?path?+?"\\images\\"+?Guid.NewGuid().ToString()+".png";??
????richTextBox1.Text?=?fullPath;??
????bmp.Save(fullPath,?System.Drawing.Imaging.ImageFormat.Png);??
}??
#endregion?