From 5be1fe0dffabc1197b165b33f206f05e5156d9eb Mon Sep 17 00:00:00 2001 From: WpyQwq <3911625973@qq.com> Date: Sat, 11 Apr 2026 13:45:57 +0800 Subject: [PATCH] Update README.md --- README.md | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) diff --git a/README.md b/README.md index d0cf7f2..6159587 100644 --- a/README.md +++ b/README.md @@ -63,3 +63,89 @@ requests rich urllib3 prompt_toolkit (optional) +README.md格式,中英混 + +Air2: High-Performance Download Engine +Air2 是一个基于 Python 开发的高性能多线程下载管理器。它专注于通过超高并发、动态分块策略以及多协议支持(HTTP/HTTPS, SFTP, BitTorrent)来最大化下载速度。该工具提供现代化的交互式命令行界面 (CLI) 和便于脚本自动化的命令行模式。 +Features / 核心功能 +High Concurrency / 超高并发: Optimized thread pool supporting up to 200 concurrent workers to maximize bandwidth usage. (优化的线程池,支持多达 200 个并发工作线程以最大化带宽利用率。) +Dynamic Chunking / 动态分块: Automatically adjusts chunk sizes based on file size to optimize throughput and reduce overhead. (根据文件大小自动调整分块大小,优化吞吐量并减少开销。) +Multi-Protocol Support / 多协议支持: Native support for HTTP/HTTPS and SFTP; architecture designed for easy addition of BitTorrent and other protocols. (原生支持 HTTP/HTTPS 和 SFTP;架构设计便于扩展 BitTorrent 及其他协议。) +Robust Resume Capability / 强大的断点续传: Handles Range requests efficiently to ensure zero data loss during network interruptions. (高效处理 Range 请求,确保网络中断时零数据丢失。) +Modern CLI Interface / 现代化 CLI 界面: Built with the rich library for real-time progress bars, speed meters, and ETA calculations without clutter. (基于 rich 库构建,提供实时进度条、速度计和预计剩余时间计算,界面简洁。) +Intelligent Input / 智能输入: Optional integration with prompt_toolkit for command auto-completion, history navigation, and syntax highlighting. (可选集成 prompt_toolkit,支持命令自动补全、历史记录导航和语法高亮。) +Task Management / 任务管理: Full lifecycle control including add, start, pause, resume, cancel, remove, and automatic ZIP extraction. (完整的全生命周期控制,包括添加、启动、暂停、恢复、取消、移除及自动 ZIP 解压。) +Speed Limiting / 限速控制: Configurable download speed limits to prevent network congestion. (可配置的下载速度限制,防止网络拥塞。) +Single File Deployment / 单文件部署: Designed as a single executable script for easy distribution and deployment. (设计为单执行脚本,便于分发和部署。) +Installation / 安装 +Ensure you have Python 3.8 or higher installed. Install the required dependencies: +请确保已安装 Python 3.8 或更高版本。安装所需依赖: +bash +1 +Note: prompt_toolkit is optional but recommended for enhanced command-line features like auto-completion. +(注:prompt_toolkit 为可选依赖,但推荐使用以获得自动补全等增强功能。) +Usage / 使用方法 +Interactive Mode / 交互模式 +Run the script directly to enter the interactive shell: +直接运行脚本进入交互式 Shell: +bash +1 +Available Commands / 可用命令: +Command +Description / 描述 +help +Display command list and help text. / 显示命令列表和帮助信息。 +add [options] +Add a new download task. / 添加新的下载任务。 +start +Start a waiting task. / 开始等待中的任务。 +pause +Pause a running task. / 暂停正在运行的任务。 +resume +Resume a paused task. / 恢复暂停的任务。 +cancel +Cancel a task (keeps downloaded files). / 取消任务(保留已下载文件)。 +remove [--delete] +Remove a task and optionally delete the file. / 移除任务并可选择删除文件。 +unzip [output_dir] +Extract completed ZIP files. / 解压已完成的 ZIP 文件。 +list / ls +Show all tasks and their status. / 显示所有任务及其状态。 +status +Display system statistics and overall progress. / 显示系统统计数据和总体进度。 +exit / quit +Close the application. / 关闭应用程序。 +Example / 示例: +text +1234 +Command Line Mode / 命令行模式 (Scripting) +You can also run commands directly from the terminal without entering the interactive shell: +您也可以直接在终端运行命令,无需进入交互式 Shell: +bash +1234567891011 +Options for add Command / add 命令选项 +--threads=N: Number of concurrent threads (default: 8). / 并发线程数(默认:8)。 +--output=DIR: Destination directory (default: current directory). / 目标目录(默认:当前目录)。 +--chunk-size=S: Force specific chunk size (e.g., 10M, 1G). Defaults to dynamic calculation. / 强制指定分块大小(例如 10M, 1G)。默认为动态计算。 +--speed-limit=N: Limit download speed in KB/s (0 for unlimited). / 限制下载速度(KB/s),0 表示不限制。 +--timeout=N: Request timeout in seconds. / 请求超时时间(秒)。 +--retry=N: Number of retry attempts on failure. / 失败后的重试次数。 +Architecture / 架构 +The codebase is structured into distinct modules for maintainability: +代码库结构清晰,分为独立模块以便于维护: +DownloadEngine: Manages the core logic, including task queues, thread pools, and state synchronization. (管理核心逻辑,包括任务队列、线程池和状态同步。) +ChunkDownloader: Handles individual block retrieval, error recovery, and checksum verification. (处理单个块的检索、错误恢复和校验和验证。) +ProtocolHandler: Abstract base class for different protocols (HTTP, SFTP, etc.), allowing easy extension. (不同协议的抽象基类,便于扩展新协议。) +ModernCLI: Provides the user interface layer using rich and prompt_toolkit. (使用 rich 和 prompt_toolkit 提供用户界面层。) +Configuration / 配置 +The engine automatically detects file sizes and adjusts chunk counts. For large files (>1GB), it increases chunk size to 16MB; for medium files (>100MB), it uses 4MB chunks. This dynamic approach minimizes connection overhead while maintaining high parallelism. Users can override these defaults via command-line arguments if specific network conditions require manual tuning. +引擎会自动检测文件大小并调整分块数量。对于大文件(>1GB),分块大小会增加到 16MB;对于中等文件(>100MB),使用 4MB 分块。这种动态方法在保持高并行度的同时最小化了连接开销。如果特定的网络条件需要手动调整,用户可以通过命令行参数覆盖这些默认值。 +License / 许可 +This project is licensed under the MIT License. +本项目采用 MIT 许可证授权。 +Requirements / 环境要求 +Python 3.8+ +requests +rich +urllib3 +prompt_toolkit (optional)