爬虫--BeautifulSoup

什么是BeautifulSoup？

爬虫--BeautifulSoup

BeautifulSoup支持的一些解析库

爬虫--BeautifulSoup

基本使用

from bs4 import BeautifulSoup

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" > <!--Elsie--></a>,
    <a href="http://example.com/lacie" class="sister" >Lacie</a>and
    <a href="http://example.com/tillie" class="sister" >Tillie</a>;
    and they lived at the bottom of a well.</p>
    <p class="story">..</p>
"""

soup=BeautifulSoup(html,"lxml")
print(soup.prettify())  # .prettify() 格式化代码
print(soup.title.string) # .title.string

<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 class="sister" href="http://example.com/elsie" id="link1">
    <!--Elsie-->
   </a>
   ,
   <a class="sister" href="http://example.com/lacie" id="link2">
    Lacie
   </a>
   and
   <a class="sister" href="http://example.com/tillie" id="link3">
    Tillie
   </a>
   ;
    and they lived at the bottom of a well.
  </p>
  <p class="story">
   ..
  </p>
 </body>
</html>
 The Dormouse's story

打印后的结果为：