#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?

轉載于:https://www.cnblogs.com/jimmyLei/p/9037892.html

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