// <summary> /// 图片转换成字节流 /// </summary> /// <param name="img">要转换的Image对象</param> /// <returns>转换后返回的字节流</returns> public static byte[] ImgToByt(Image img) { MemoryStream ms = new MemoryStream(); byte[] imagedata = null; img.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); imagedata = ms.GetBuffer(); return imagedata; } /// <summary> /// 字节流转换成图片 /// </summary> /// <param name="byt">要转换的字节流</param> /// <returns>转换得到的Image对象</returns> public static Image BytToImg(byte[] byt, string imgUrl) { MemoryStream ms = new MemoryStream(byt); Image img = Image.FromStream(ms); img.Save(imgUrl); return img; } // /// <summary> /// 根据图片路径返回图片的字节流byte[] /// </summary> /// <param name="imagePath">图片路径</param> /// <returns>返回的字节流</returns> private static byte[] getImageByte(string imagePath) { FileStream files = new FileStream(imagePath, FileMode.Open); byte[] imgByte = new byte[files.Length]; files.Read(imgByte, 0, imgByte.Length); files.Close(); return imgByte; }
转载于:https://www.cnblogs.com/jimmyLei/p/9052900.html
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