很多人都有过使用网络蚂蚁或网络快车软件下载互联网文件的经历，这些软件的使用可以大大加速互联网上文件的传输速度，减少文件传输的时间。这些软件为什么有如此大的魔力呢？其主要原因是这些软件都采用了多线程下载和断点续传技术。如果我们自己来编写一个类似这样的程序，也能够快速的在互联网上下载文件，那一定是非常愉快的事情。下面我就讲一讲如何利用C#语言编写一个支持多线程下载文件的程序，你会看到利用C#语言编写网络应程序是多么的容易，从中也能体会到C#语言中强大的网络功能。

-many people use the Internet, they had ants Network Express software or download files over the Internet experience, the use of such software can greatly speed up the documents on the Internet speeds, reduce file transfer time. These software Why is there so much magic? Its main reason is the software used to download and multithreading technology HTTP. If we prepare ourselves to a similar case in the process and to quickly download on the Internet, it must be a very pleasant thing. Now, I would talk about how to use C# language support for a multi-threaded download procedures, you will see the use of C# language network should procedure is how easy from can understand C# Language powerful networking capabilities.