xpath获取新闻标题
时间: 2023-11-08 18:18:05 浏览: 194
百度新闻标题采集软件
XPath是一种在XML文档中定位和提取特定数据的查询语言。在使用XPath进行爬虫时,可以通过XPath表达式来提取网页源代码中的新闻标题。在这个过程中,我们可以使用以下XPath表达式来获取新闻标题:
```
//h1/text()
```
这个XPath表达式的含义是,从文档的根节点开始,选择所有名为"h1"的元素节点,并提取其文本内容。通过这个XPath表达式,我们可以获得网页中所有新闻的标题信息。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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