这就是为清单5中的graball视图抓取所有患者的方法。
This is how you get all the patients in the database to the graball view you defined in Listing 5.
我的简单爬虫软件包含三个视图可以爬行的过程，检查细节，并查看抓取错误。
My simple crawler contains three views that can follow the crawling process, check the details, and view the crawling errors.
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