使用 BeautifulSoup 库解析 HTML 的例子
时间: 2024-06-10 14:08:29 浏览: 14
好的。以下是使用 BeautifulSoup 库解析 HTML 的简单例子:
```
from bs4 import BeautifulSoup
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title"><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">Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, 'html.parser')
print(soup.prettify())
```
在这个例子中,我们使用了 BeautifulSoup 库来解析 HTML 文档字符串 `html_doc`。我们使用 `html.parser` 作为解析器。然后我们使用 `prettify()` 方法来格式化输出解析后的文档。
输出结果如下:
```
<html>
<head>
<title>
The Dormouse's story
</title>
</head>
<body>
<p class="title">
<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>
```
在这个例子中,我们仅仅是解析了 HTML 文档并格式化了输出。BeautifulSoup 库还提供了很多方法来查
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