C#爬虫入门

F12打开调试控制台，点击“Network”，点击打开的那个页面“news.baidu.com”，右边的“Header”里面会显示出来响应头和请求头。

参考：

https://www.cnblogs.com/wzk153/p/9145684.html

http://www.cnblogs.com/asxinyu/p/CSharp_HtmlAgilityPack_XPath_Weather_Data.html

https://www.cnblogs.com/answercard/p/5197711.html

https://www.cnblogs.com/itjeff/p/5794673.html

https://blog.csdn.net/hguchen/article/details/73308902

http://www.sufeinet.com/