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