BS4CCS选择

　　BS4CCS选择：
#coding:utf-8
from bs4 import BeautifulSoup
import re
html = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="dromouse"><b>The Dormouse's story</b></p>
<p class="story">Once upon a time there were three little sisters;
and their names were
<a href="http://example.com/elsie" class="sister" id="link1"><!-- E
lsie --></a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie<
/a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tilli
e</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""

soup=BeautifulSoup(html,"lxml") #"lxml解析方式"
#soup=BeautifulSoup(html,"html5lib") #HTML5解析 ,只是解析方法不一样，结果一样
print(soup.select('title'))
print(soup.select('head')) #根据标签
print(soup.select('a'))


print(soup.select('.sister')) #根据类型名

print(soup.select('#link1')) #根据id

print(soup.select('p #link1')) #p标签内部的id=link1

print(soup.select("head > title")) #>标签层级

print(soup.select('a[class="sister"]')) #标签为a的class=sister元素

print(soup.select('title')[0].get_text()) #抓取标签之间的内容

for title in soup.select('title'):
    print(title.get_text())
posted on 2020-03-11 10:41 共感的艺术阅读(111) 评论(0) 收藏举报