Scrapy 1.4 Documentationthis paragraph from our sample document:Is this a link?
. It’s the 2nd child of the 1stof thewe used above: paragraph = first_div.xpath('child::div[1]/child::p[2]')[0] position()1 and position() 2nd, 3rd and 4th items. Location paths as predicates Location paths can also serve as predicates within //div[2][@class="second"] looks at div elements that are the 2nd child of their parent. div means child::div, and [2] will select the 2nd node in the current node- set. In our document this happens only 0 码力 | 394 页 | 589.10 KB | 1 年前3共 1 条- 1
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