July 2017
Intermediate to advanced
398 pages
11h 54m
Chinese
Content preview from Python数据处理
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网页抓取：获取并存储网络数据
｜
229
图 11-4：检视元素
如果点击“检视元素”选项，开发者工具应该会在源代码中打开那个元素。这是一个非常
有用的特性，可用于与内容交互，以及查看其在代码中的位置。
除了能够在浏览器中同元素交互之外，你还可以在源代码部分同元素交互。图
11-5
展示了
通过在标记结构区域右击一个元素得到的菜单类型。可以看到复制
CSS
选择器或
XPath
选
择器（我们会在本章中使用这两者定位和抽取网站内容）的选项。
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