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/* - - - - - - - - - - - - - - - - - - - - - - - -
* Stream 和 byte[] 之間的轉(zhuǎn)換
* - - - - - - - - - - - - - - - - - - - - - - - */
/// <summary>
/// 將 Stream 轉(zhuǎn)成 byte[]
/// </summary>
public byte[] StreamToBytes(Stream stream)
{
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 設(shè)置當(dāng)前流的位置為流的開始
stream.Seek(0, SeekOrigin.Begin);
return bytes;
}
/// <summary>
/// 將 byte[] 轉(zhuǎn)成 Stream
/// </summary>
public Stream BytesToStream(byte[] bytes)
{
Stream stream = new MemoryStream(bytes);
return stream;
}
/* - - - - - - - - - - - - - - - - - - - - - - - -
* Stream 和 文件之間的轉(zhuǎn)換
* - - - - - - - - - - - - - - - - - - - - - - - */
/// <summary>
/// 將 Stream 寫入文件
/// </summary>
public void StreamToFile(Stream stream,string fileName)
{
// 把 Stream 轉(zhuǎn)換成 byte[]
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 設(shè)置當(dāng)前流的位置為流的開始
stream.Seek(0, SeekOrigin.Begin);
// 把 byte[] 寫入文件
FileStream fs = new FileStream(fileName, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(bytes);
bw.Close();
fs.Close();
}
/// <summary>
/// 從文件讀取 Stream
/// </summary>
public Stream FileToStream(string fileName)
{
// 打開文件
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
// 讀取文件的 byte[]
byte[] bytes = new byte[fileStream.Length];
fileStream.Read(bytes, 0, bytes.Length);
fileStream.Close();
// 把 byte[] 轉(zhuǎn)換成 Stream
Stream stream = new MemoryStream(bytes);
return stream;
}
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