Web scraping 如何拥有多个上下文选择器?
我现在正在做围巾 我当前的很多代码都是这样的Web scraping 如何拥有多个上下文选择器?,web-scraping,css-selectors,Web Scraping,Css Selectors,我现在正在做围巾 我当前的很多代码都是这样的 contextSelector = 'a[href^="/clubs-and-societies/academic/'; (本工程) 但是,要选择多个页面,使用多个上下文选择器不起作用 contextSelector = 'a[href^="/clubs-and-societies/academic/'; contextSelector = 'a[href^="/clubs-and-societies/culture/'; co
contextSelector = 'a[href^="/clubs-and-societies/academic/';
(本工程)
但是,要选择多个页面,使用多个上下文选择器不起作用
contextSelector = 'a[href^="/clubs-and-societies/academic/';
contextSelector = 'a[href^="/clubs-and-societies/culture/';
contextSelector = 'a[href^="/clubs-and-societies/dance/';
(不工作)
解决办法是什么 两点: 1) 您的语法格式不正确。应该是:
contextSelector = 'a[href^="/clubs-and-societies/academic/"]';
(注意结尾双引号“
和结尾方括号]
)
2) CSS中的逻辑或
是逗号,
:
contextSelector = 'a[href^="/clubs-and-societies/academic/"], a[href^="/clubs-and-societies/culture/"], a[href^="/clubs-and-societies/dance/"]';
哦,是的,谢谢。我会更正语法。不幸的是,添加“,”不起作用