lxml findall div和span标签

Question

如何才能找到所有div和span标签的顺序保存。使用BeautifulSoup它非常简单：soup.findAll(name=['span', 'div'])，但我最近切换到lxml，因为它比BeautifulSoup快得多。

Answer 1

import lxml.html 
from lxml.cssselect import CSSSelector 
content = result.read() 
page_html = lxml.html.fromstring(content) 

elements = page_html.xpath('//*[self::div or self::span]') 

或

sd_selector = CSSSelector('span,div') 
elements = sd_selector(page_html) 

Answer 2

import lxml.html as LH 
content = '''\ 
<tr> 
<div>idend</div> 
<span>Green<\span> 
<tr> 
''' 
root = LH.fromstring(content) 
for tag in root.xpath('//*[self::div or self::span]'): 
    print(tag) 

产生

<Element div at 0xb751f23c> 
<Element span at 0xb751f11c>