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所在平台: Udemy |
课程主页: https://www.udemy.com/course/introduction-to-data-exractionweb-scraping-in-python/
课程评论：没有评论
课程名称：Python网页爬虫：掌握基础知识 课程概述：网页爬虫是从网站提取数据的一种艺术，通过查看HTML代码并识别可用于识别数据的模式，将数据提取出来。提取的数据可以用于后续分析。本课程将带您学习网页爬虫和爬取的基础知识，了解如何从网站提取数据，并通过一个实际示例进行指导。 课程内容从静态网站的简单爬取开始，使用requests库获取网站数据，并使用BeautifulSoup轻松解析数据。当我们掌握了基础后，将进入动态网站的爬取，这些网站使用JavaScript渲染内容。在这一部分中，我们将使用Selenium来渲染页面，以获取完整的信息内容。我们还将学习一些常用操作，比如点击按钮（例如当页面有弹出窗口时），或将文本输入表单，以便在需要执行搜索或登录时使用爬虫。 课程结束时，您将能够独立提取大部分常见网站的数据，通过Python代码提取所需的所有相关数据。
Web scraping is the art of picking out data from a website by looking at the HTML code and identifying patterns that can be used to identify your data. This data can then be gathered and later used for your own analysis.In this course we will go over the basic of web scraping and crawling, learning all about how we can extract data from websites, and all of this is guided along by a work example.In the course will start with the simpler aspect of scraping static websites. We'll do this using requests to get the website data and use BeautifulSoup to effortlessly parse it.Once we have a hang of the fundamentals we'll then get into dynamic websites that use Javascript to render their content. In this section of the course we'll be using Selenium to render the pages for us which will provide us with the full page of information. We'll also learn to do commonly needed things like clicking on buttons (e.g. when a page has a pop-up), or sending text into a form - in case your scraper needs to perform searches or login somewhere.At the end of the course you should be able to go off on your own, and pick out most common websites, and be able to extract all the relevant data you may need just through using Python code.
