C# 檔案流相關操作

標籤：style   blog   http   ar   io   color   os   sp   on   

二進位轉換成圖片:

 MemoryStream ms = new MemoryStream(bytes);ms.Position = 0;Image img = Image.FromStream(ms);ms.Close();this.pictureBox1.Image

C#中byte[]與string的轉碼:

System.Text.UnicodeEncoding converter = new System.Text.UnicodeEncoding();　　byte[] inputBytes =converter.GetBytes(inputString);　　string inputString = converter.GetString(inputBytes);string inputString = System.Convert.ToBase64String(inputBytes);　　byte[] inputBytes = System.Convert.FromBase64String(inputString);FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);

C# Stream 和 byte[] 之間的轉換:

public byte[] StreamToBytes(Stream stream){    byte[] bytes = new byte[stream.Length];    stream.Read(bytes, 0, bytes.Length);    // 設定當前流的位置為流的開始    stream.Seek(0, SeekOrigin.Begin);    return bytes;}

將 byte[] 轉成 Stream:

public Stream BytesToStream(byte[] bytes){    Stream stream = new MemoryStream(bytes);    return stream;}

將 Stream 寫入檔案:

 

public void StreamToFile(Stream stream,string fileName){    // 把 Stream 轉換成 byte[]    byte[] bytes = new byte[stream.Length];    stream.Read(bytes, 0, bytes.Length);    // 設定當前流的位置為流的開始    stream.Seek(0, SeekOrigin.Begin);    // 把 byte[] 寫入檔案    FileStream fs = new FileStream(fileName, FileMode.Create);    BinaryWriter bw = new BinaryWriter(fs);    bw.Write(bytes);    bw.Close();    fs.Close();}

 

從檔案讀取 Stream:

public Stream FileToStream(string fileName){                // 開啟檔案    FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);    // 讀取檔案的 byte[]    byte[] bytes = new byte[fileStream.Length];    fileStream.Read(bytes, 0, bytes.Length);    fileStream.Close();    // 把 byte[] 轉換成 Stream    Stream stream = new MemoryStream(bytes);    return stream;}

 

轉自：http://www.cnblogs.com/Mr_JinRui/archive/2010/07/05/1771184.html

 

C# 檔案流相關操作