本系统的设计与实现主要采用SOCKET编程。同时，使用多线程技术，提高服务器的响应能力和并发处理能力；采用动态哈夫曼编码实现传输流的压缩，减轻网络传输负担；支持断点续传, 用户可以自己选择采用断点续传还是重新上传；实现大文件上传, 一次可以上传多个文件；提供接口全面，可以动态设置上传保存路径, 设置允许扩展名, 允许最大大小等； 可以限制上传单个文件大小, 控制上传带宽上限, 允许文件扩展名, 拒绝文件扩展名等。-Design and Implementation of the system SOCKET programming. At the same time, the use of multi-threading technology, improve server responsiveness and concurrent processing capability　dynamic Huffman coding to achieve transport stream compression, to reduce the burden of network transmission　support for HTTP, users can choose to use HTTP or re-upload　upload large files can upload multiple files at once　provide comprehensive interface, you can dynamically set the upload path to save setting allows the extension to allow the maximum size　may be to limit Upload a single file size, control upload bandwidth caps, allow file extension, the reject file extension.