一. 二进制转换成图片间的转换
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MemoryStream ms = new MemoryStream(bytes);
ms.Position = 0; Image img = Image.FromStream(ms); ms.Close(); this.pictureBox1.Image
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二. C#中byte[]与string的转换代码
1.
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System.Text.UnicodeEncoding converter = new System.Text.UnicodeEncoding();
byte[] inputBytes =converter.GetBytes(inputString);
string inputString = converter.GetString(inputBytes);
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2.
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string inputString = System.Convert.ToBase64String(inputBytes);
byte[] inputBytes = System.Convert.FromBase64String(inputString);
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
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三. C# Stream 和 byte[] 之间的转换
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/// 将 Stream 转成 byte[] public byte[] StreamToBytes(Stream stream)
{ byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(0, SeekOrigin.Begin);
return bytes;
} /// 将 byte[] 转成 Stream public Stream BytesToStream(byte[] bytes)
{ Stream stream = new MemoryStream(bytes);
return stream;
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四. Stream 和 文件之间的转换
将 Stream 写入文件
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public void StreamToFile(Stream stream,string fileName)
{ // 把 Stream 转换成 byte[]
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(0, SeekOrigin.Begin);
// 把 byte[] 写入文件
FileStream fs = new FileStream(fileName, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(bytes);
bw.Close();
fs.Close();
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五. 从文件读取 Stream
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public Stream FileToStream(string fileName)
{ // 打开文件
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
// 读取文件的 byte[]
byte[] bytes = new byte[fileStream.Length];
fileStream.Read(bytes, 0, bytes.Length);
fileStream.Close();
// 把 byte[] 转换成 Stream
Stream stream = new MemoryStream(bytes);
return stream;
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六Bitmap 转化为 Byte[]
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//Bitmap 转化为 Byte[] Bitmap BitReturn = new Bitmap();
byte[] bReturn = null;
MemoryStream ms = new MemoryStream();
BitReturn.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
bReturn = ms.GetBuffer();
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