html解析工具，使用css子选择器的语法解析元素，比古老的HtmlParser好用很多。在最新版本中，不支持设置Cookie等头信息来访问url，这样一些需要设置Cookie的网页就无法抓取了。为方便使用，我稍微修改了源码。

-html analytical tools, the use of css selector parsing sub-elements, easy to use than many of the old HtmlParser. In the latest version, does not support setting header information, etc. to access the Cookie url, so you need to set some of Cookie' s website can not crawl. For ease of use, I slightly modified the source code.