Beautiful Soup 简明教程
Beautiful Soup - insert() Method
Method Description
Beautiful Soup 中的 insert() 方法在标签元素的子项列表中，在指定位置添加一个元素。Beautiful Soup 中的 insert() 方法的行为，类似于在 Python 列表对象上的 insert() 方法。
The insert() method in Beautiful Soup add an element at the given position in a the list of children of a Tag element. The insert() method in Beautiful Soup behaves similar to insert() on a Python list object.
Parameters
-
position − The position at which the new PageElement should be inserted.
-
child − A PageElement to be inserted.
Example 1
在以下示例中，新字符串被添加到 <b> 标记，位置为 1。结果解析的文档显示结果。
In the following example, a new string is added to the <b> tag at position 1. The resultant parsed document shows the result.
from bs4 import BeautifulSoup, NavigableString
markup = '<b>Excellent </b><u>from TutorialsPoint</u>'
soup = BeautifulSoup(markup, 'html.parser')
tag = soup.b
tag.insert(1, "Tutorial ")
print (soup.prettify())Example 2
在下面的示例中，insert() 方法被用于依次将列表中的字符串插入到 HTML 标记中的 <p> 标签。
In the following example, the insert() method is used to successively insert strings from a list to a <p> tag in HTML markup.
from bs4 import BeautifulSoup, NavigableString
markup = '<p>Excellent Tutorials from TutorialsPoint</p>'
soup = BeautifulSoup(markup, 'html.parser')
langs = ['Python', 'Java', 'C']
i=0
for lang in langs:
i+=1
tag = soup.new_tag('p')
tag.string = lang
soup.p.insert(i, tag)
print (soup.prettify())