Python读取本地文件并解析网页元素的方法
如下所示：
from bs4 import BeautifulSoup
path = './web/new_index.html'
with open(path, 'r') as f:
Soup = BeautifulSoup(f.read(), 'lxml')
titles = Soup.select('ul > li > div.article-info > h3 > a')
for title in titles:
print(title.text)
输出：
Sardinia's top 10 beaches
How to get tanned
How to be an Aussie beach bum
Summer's cheat sheet
#其中
titles = Soup.select('ul > li > div.article-info > h3 > a')
#等效
titles = Soup.select('h3 a')
print(title.text) #等效 print(title.get_text()) print(title.string)
也可以使用以下代码
import bs4
path = './web/new_index.html'
with open(path, 'r') as f:
Soup = bs4.BeautifulSoup(f.read(), 'lxml')
titles = Soup.select('h3 a')
for title in titles:
print(title.string)
Html原文：
<html>
<head>
<link rel="stylesheet" type="text/css" href="new_blah.css" rel="external nofollow" >
</head>
<body>
<div class="header">
<img src="images/blah.png">
<ul class="nav">
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Home</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Site</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Other</a></li>
</ul>
</div>
<div class="main-content">
<h2>Article</h2>
<ul class="articles">
<li>
<img src="images/0001.jpg" width="100" height="91">
<div class="article-info">
<h3><a href="www.sample.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Sardinia's top 10 beaches</a></h3>
<p class="meta-info">
<span class="meta-cate">fun</span>
<span class="meta-cate">Wow</span>
</p>
<p class="description">white sands and turquoise waters</p>
</div>
<div class="rate">
<span class="rate-score">4.5</span>
</div>
</li>
<li>
<img src="images/0002.jpg" width="100" height="91">
<div class="article-info">
<h3><a href="www.sample.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >How to get tanned</a></h3>
<p class="meta-info">
<span class="meta-cate">butt</span><span class="meta-cate">NSFW</span>
</p>
<p class="description">hot bikini girls on beach</p>
</div>
<div class="rate">
<img src="images/Fire.png" width="18" height="18">
<span class="rate-score">5.0</span>
</div>
</li>
<li>
<img src="images/0003.jpg" width="100" height="91">
<div class="article-info">
<h3><a href="www.sample.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >How to be an Aussie beach bum</a></h3>
<p class="meta-info">
<span class="meta-cate">sea</span>
</p>
<p class="description">To make the most of your visit</p>
</div>
<div class="rate">
<span class="rate-score">3.5</span>
</div>
</li>
<li>
<img src="images/0004.jpg" width="100" height="91">
<div class="article-info">
<h3><a href="www.sample.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Summer's cheat sheet</a></h3>
<p class="meta-info">
<span class="meta-cate">bay</span>
<span class="meta-cate">boat</span>
<span class="meta-cate">beach</span>
</p>
<p class="description">choosing a beach in Cape Cod</p>
</div>
<div class="rate">
<span class="rate-score">3.0</span>
</div>
</li>
</ul>
</div>
<div class="footer">
<p>© Mugglecoding</p>
</div>
</body>
</html>
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