Python:lxml xpath获得两个不同的类 [英] Python : lxml xpath get two different classes

问题描述

这是我的示例Python代码

Here is my sample Python code

import requests
import lxml.html

page = '<div class="aaaa12"><span class="test">22</span><span class="number">33</span></div><div class="dddd13"><span>Kevin</span></div>' 
tree = lxml.html.fromstring(page)


number = tree.xpath('//span[@class="number"]/text()')
price = tree.xpath('.//div[@class="dddd13"]/span/text()')

print number
print price

当我跑步时，我会像下面这样

When I ran I could get like below

['33']
['Kevin']

但是，我想一次获得两者，例如= ['33'，'Kevin'] 我尝试过

However, I would like to get both at once like = ['33','Kevin'] I tried

number = tree.xpath('//span[@class="number"]/text() or //div[@class="dddd13"]/span/text()')

我无法获得价值.获得两个不同类的语法是什么?

I couldn't get the value. What is syntax to get two different classes?

推荐答案

使用|联合运算符将多个完整路径表达式的结果结合在一起:

Use the | union operator to join the results of multiple full path expressions:

number = tree.xpath('//span[@class="number"]/text() | //div[@class="dddd13"]/span/text()')

演示:

>>> import lxml.html
>>> page = '<div class="aaaa12"><span class="test">22</span><span class="number">33</span></div><div class="dddd13"><span>Kevin</span></div>' 
>>> tree = lxml.html.fromstring(page)
>>> tree.xpath('//span[@class="number"]/text() | //div[@class="dddd13"]/span/text()')
['33', 'Kevin']

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