zoukankan      html  css  js  c++  java
  • C# Stream 和 byte[] 之间的转换

    /* - - - - - - - - - - - - - - - - - - - - - - - - 
    * Stream 和 byte[] 之间的转换
    * - - - - - - - - - - - - - - - - - - - - - - -
    */
    /// <summary>
    /// 将 Stream 转成 byte[]
    /// </summary>
    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;
    }

    /// <summary>
    /// 将 byte[] 转成 Stream
    /// </summary>
    public Stream BytesToStream(byte[] bytes)
    {
    Stream stream
    = new MemoryStream(bytes);
    return stream;
    }


    /* - - - - - - - - - - - - - - - - - - - - - - - -
    * Stream 和 文件之间的转换
    * - - - - - - - - - - - - - - - - - - - - - - -
    */
    /// <summary>
    /// 将 Stream 写入文件
    /// </summary>
    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();
    }

    /// <summary>
    /// 从文件读取 Stream
    /// </summary>
    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;
    }
  • 相关阅读:
    AirFlow性能调优
    AirFlow通过账号密码➕角色权限控制来登陆
    通过Supervisor管理airflow的webserver进程和scheduler进程
    CSS基础一
    html学习
    Linux下MySQL远程链接配置
    搭建Firekylin博客
    Vuejs开发环境搭建及热更新
    templates页面超链接访问Controller方法
    Chrome搜索设置
  • 原文地址:https://www.cnblogs.com/wpf123/p/2184715.html
Copyright © 2011-2022 走看看