c# 图片转二进制流

Posted 2023-03-21

RT,比如说如何把picturebox1的图片转成流形式

参考技术A 你可以把它序列化，如下

using System.IO;
using System.Runtime.Serialization.Formatters.Binary;

private void Form1_Load(object sender, EventArgs e)

BinaryFormatter binaryFormatter = new BinaryFormatter();
Bitmap bit = pictureBox1.Image as Bitmap;
MemoryStream memoryStream = new MemoryStream();
binaryFormatter.Serialize(memoryStream, bit);//序列化
byte[] byteArr = memoryStream.ToArray();//这就是你要的

Bitmap bit = binaryFormatter.Deserialize(memoryStream);//反序列化
memoryStream.Dispose(); 参考技术B System.IO.MemoryStream s = new System.IO.MemoryStream();

picturebox1.Image.Save(s, System.Drawing.Imaging.ImageFormat.Jpeg);

byte[] Data=s.ToArray();本回答被提问者采纳