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如何将新标签插入到BeautifulSoup对象中
在本文中，我们将了解如何将新标签插入到 BeautifulSoup 对象中。请参阅以下示例以更好地了解该主题。
例子：
HTML_DOC :
“””
<html>
<head>
<title> Table Data </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>
“””
new_tag : <div> This is new div </div>
Modified BeautifulSoup Object :
“””
<html>
<head>
<title> Table Data </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
<div> This is new div </div>
</body>
</html>
“””所需模块：
BeautifulSoup (bs4)：它是一个用于从 HTML 和 XML 文件中提取数据的 Python 库。该模块不是 Python 内置的。在终端中运行以下命令来安装该库
pip install bs4
or
pip install beautifulsoup4使用 new_tag() 方法创建新标签
可以通过调用 BeautifulSoup 的内置函数new_tag()创建新标签。
使用append()方法插入新标签
新标签将附加到父标签的末尾。
# Import Module
from bs4 import BeautifulSoup
# HTML Document
HTML_DOC = """
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>
"""
def addTag(html):
soup = BeautifulSoup(html, "html.parser")
new_div = soup.new_tag("div")
new_div.string = " This is new div "
soup.html.body.append(new_div)
print(soup)
addTag(HTML_DOC)
输出：
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
<div> This is new div </div></body>
</html>使用insert()方法插入新标签
使用此方法，新标签不会附加到父标签的末尾，而是插入到给定的数字位置。它的工作方式与Python列表的.insert()方法相同。例如，如果我们想在div 1和div 2之间插入新的div，我们可以使用 soup.html.body.insert(2, new_div)
soup.html.body.insert(2, new_div)这会将新的 div 插入位置 2，即旧的 2 个 div 之间。
# Import Module
from bs4 import BeautifulSoup
# HTML Document
HTML_DOC = """
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>
"""
def addTag(html):
soup = BeautifulSoup(html, "html.parser")
new_div = soup.new_tag("div")
new_div.string = " This is new div "
soup.html.body.insert(2, new_div)
print(soup)
addTag(HTML_DOC)
输出：
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div><div> This is new div </div>
<div> This is sample div 2 </div>
</body>
</html>使用 insert_before() 方法插入新标签：
insert_before() 方法用于在给定标签之前插入新标签。
# Import Module
from bs4 import BeautifulSoup
# HTML Document
HTML_DOC = """
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>
"""
def addTag(html):
soup = BeautifulSoup(html, "html.parser")
new_div_before = soup.new_tag("div")
new_div_before.string = " This is new div before div 1 "
soup.html.body.div.insert_before(new_div_before)
print(soup)
addTag(HTML_DOC)
输出：
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is new div before div 1 </div><div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>使用 insert_after() 方法插入新标签
insert_after() 方法用于在给定标签之后插入新标签。
# Import Module
from bs4 import BeautifulSoup
# HTML Document
HTML_DOC = """
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>
"""
def addTag(html):
soup = BeautifulSoup(html, "html.parser")
new_div_after = soup.new_tag("div")
new_div_after.string = " This is new div after div 1 "
soup.html.body.div.insert_after(new_div_after)
print(soup)
addTag(HTML_DOC)
输出：
<html>
<head>
<title> Add new Tag </title>
</head>
<body>
<div> This is sample div 1 </div><div> This is new div after div 1 </div>
<div> This is sample div 2 </div>
</body>
</html>无论您是在准备第一次求职面试，还是希望在不断发展的技术领域提高技能，
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