python怎么使用xpath获取标签属性？

Question

python怎么使用xpath获取标签属性

Answer 1

先导入包from lxml import etree然后tree=etree.HTML(detailHtml)detailHtml是网页内容dataNoteList=tree.xpath(u'//td')td 表示标记名称

Answer 2

XPath='//*[@id="j-nav-menu-container"]/div/div/div/div/div/div[2]/div[1]/a/@href'获得a标签的hrefXPath='//*[@id="j-nav-menu-container"]/div/div/div/div/div/div[2]/div[1]/a/text()'获得a标签内容

Answer 3

response.xpath('//h3/a/descendant-or-self::text()[normalize-space()]')descendant-or-self表明当前node和子代nodesnormal-space()去掉whitespace-only nodes的子代nodes