下载引擎的设计与实现

Design and Implementation of a Downloading Engine

随着互联网的蓬勃发展,下载引擎成为人们使用最为频繁的软件之一。设计了一个下载引擎,采用多线程技术,通过VB程序设计语言所提供的Winsock控件实现了基于TCP协议的断点续传等数据传输功能。对于该下载引擎的总体设计框架,主要模块的详细设计及实现过程进行了详细介绍。

With the vigorous development of the Intemet, downloading engine has become one of the most frequently used sol, ware. The downloading engine uses multi-threading method and the Winsock provided by VB programming language to achieve data transmission based on the TCP protocol. The paper describes the structure of the software system, modular design and implementation process in detail.