Scrapy 2.10 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css("title") [] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 419 页 | 1.73 MB | 1 年前3- Scrapy 2.4 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css('title') [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 354 页 | 1.39 MB | 1 年前3 - Scrapy 1.7 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css('title') [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 306 页 | 1.23 MB | 1 年前3 
Scrapy 1.4 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3 [https://aws.amazon.com/s3/], for example). You can also write an item pipeline css('title') [] The result of running response.css('title') is a list-like object called SelectorList, which represents a list Scrape'] The other thing is that the result of calling .extract() is a list, because we’re dealing with an instance of SelectorList. When you know you just want the first result, as in this case, you can do: 0 码力 | 394 页 | 589.10 KB | 1 年前3- Scrapy 2.6 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css('title') [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 384 页 | 1.63 MB | 1 年前3 - Scrapy 2.7 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css('title') [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 401 页 | 1.67 MB | 1 年前3 - Scrapy 2.9 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css("title") [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 409 页 | 1.70 MB | 1 年前3 - Scrapy 2.8 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css('title') [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 405 页 | 1.69 MB | 1 年前3 - Scrapy 2.11.1 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css("title") [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 425 页 | 1.76 MB | 1 年前3 - Scrapy 2.11 Documentationthe JSON file, you can easily change the export format (XML or CSV, for example) or the storage backend (FTP or Amazon S3, for example). You can also write an item pipeline to store the items in a database css("title") [
] The result of running response.css('title') is a list-like object called SelectorList, which represents a list thing is that the result of calling .getall() is a list: it is possible that a selector returns more than one result, so we extract them all. When you know you just want the first result, as in this case 0 码力 | 425 页 | 1.76 MB | 1 年前3
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