wget是linux系统上非常有名的http/https下载工具， 功能强大， 代码可以供学习网络编程参考，非常经典。-linux system very well-known http/https download the tool, a powerful, code can be used for learning network programming reference, very classic.

wget-1.11.4版本源码，是学习linux socket编程的的好范例！-wget-1.11.4 version of the source code is a good example of learning linux socket programming!