python BeautifulSoup库的常用操作
作者：Focuson
Beautiful Soup 是一个可以从HTML或XML文件中提取数据的Python库,它能够通过你喜欢的转换器实现惯用的文档导航,查询,修改文档的方式,本文就来给大家简单介绍一下BeautifulSoup库的常用操作,需要的朋友可以参考下
BeautifulSoup库
0、所有方法都有的
from bs4 import BeautifulSoup
# 前面几个方法使用的都是这个参数，所以统一使用这个（后面的那些方法没有引用这个html文本文件）
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" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""1、基本用法
'''
基本用法demo1
'''
def demo01(html_doc):
# 这里的作用是将html_doc中缺少的标签补充完善，使用的库是lxml进行补全
soup = BeautifulSoup(html_doc, "lxml")
# 更正html_doc的格式，使得上面文本的格式是正确的
print(soup.prettify())
# 查看经过上面步骤处理过后的结果
print(soup.title.string)2、节点选择器
'''
节点选择器demo2
'''
def demo02(html_doc):
soup = BeautifulSoup(html_doc, 'lxml')
# 选择html_doc中的title标签
# 结果：<title>The Dormouse's story</title>
print(soup.title)
# 查看对应的类型
# 结果：<class 'bs4.element.Tag'>
print(type(soup.title))
# 结果：The Dormouse's story
print(soup.title.string)
# 结果：<head><title>The Dormouse's story</title></head>
print(soup.head)
# 结果：<p class="title"><b>The Dormouse's story</b></p>
print(soup.p)
# 结果：<class 'bs4.element.Tag'>
print(type(soup.p))
# 结果：<a class="sister" href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1">Elsie</a> 【默认返回第一个】
print(soup.a)3、提取节点信息
'''
提取节点信息demo3
'''
def demo03(html_doc):
soup = BeautifulSoup(html_doc, "lxml")
# <a href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>
tag = soup.a
# 1、获取名称
# 结果：a
print(tag.name)
# 2、获取属性值
# 结果：
# class值为： ['sister']
# href值为： http://example.com/elsie
print("class值为： ", tag.attrs["class"])
print("href值为： ", tag.attrs["href"])
# 3、获取内容
# 结果：Elsie
print(tag.string)4、获取子节点信息
'''
获取子节点信息demo4
'''
def demo04(html_doc):
soup = BeautifulSoup(html_doc, 'lxml')
# 1、首先获取head标签的内容部分
# 结果：<head><title>The Dormouse's story</title></head>
print(soup.head)
# 2、然后获取head中title标签的内容
# 结果：<title>The Dormouse's story</title>
print(soup.head.title)
# 3、获取head中title下的文本内容
# 结果：The Dormouse's story
print(soup.head.title.string)5、关联选择
1、获取子节点--contents
'''
关联选择demo05--01--下级节点
使用contents属性进行获取--获取子节点
介绍：
在做选择的时候，有时候不能做到一步就获取到我想要的节点元素，需要选取某一个节点元素，
然后以这个节点为基准再选取它的子节点、父节点、兄弟节点等
'''
def demo05():
# 注意它的第一个p标签没有换行展示
html_doc01 = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="Dormouse"><b>The Dormouse's story</b></p>
<p class="story">...</p>
"""
# 注意它和html_doc01的区别在于，p标签进行了换行
html_doc02 = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="Dormouse"><b>The Dormouse's story</b>
</p>
<p class="story">...</p>
"""
# 1、获取节点的子节点和子孙节点--contents属性
soup01 = BeautifulSoup(html_doc01, "lxml")
# 结果：[<b>The Dormouse's story</b>]
print(soup01.p.contents)
soup02 = BeautifulSoup(html_doc02, "lxml")
# 注意这里的结果多了一个换行符
# 结果：[<b>The Dormouse's story</b>, '\n']
print(soup02.p.contents)2、获取子节点--children
'''
关联选择demo06--02--下级节点
使用children属性进行获取--获取子节点
'''
def demo06():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="story">
Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.
</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 结果：<list_iterator object at 0x000002B35915BFA0
print(soup.p.children)
# 结果：[
# '\n Once upon a time there were three little sisters; and their names were\n ',
# <a class="sister" href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1">Elsie</a>,
# ',\n ',
# <a class="sister" href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link2">Lacie</a>,
# ' and\n ',
# <a class="sister" href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link3">Tillie</a>,
# ';\n and they lived at the bottom of a well.\n '
# ]
print(list(soup.p.children))
for item in soup.p.children:
print(item)3、获取子孙节点--descendants
'''
关联选择demo07--03--下级节点
使用descendants属性进行获取--获取子孙节点(获取：子节点和孙节点的内容)
'''
def demo07():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="story">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1"><span>Elsie</span>Elsie</a>,
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 结果：<generator object Tag.descendants at 0x000001C0E79DCC10>
print(soup.p.descendants)
# 结果：[
# 'Once upon a time there were three little sisters; and their names were\n ',
# <a class="sister" href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1"><span>Elsie</span>Elsie</a>,
# <span>Elsie</span>,
# 'Elsie',
# 'Elsie',
# ',\n ',
# <a class="sister" href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link2">Lacie</a>,
# 'Lacie',
# ' and\n ',
# <a class="sister" href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link3">Tillie</a>,
# 'Tillie',
# ';\n and they lived at the bottom of a well.'
# ]
print(list(soup.p.descendants))
# for item in soup.p.descendants:
# print(item)4、获取父节点--parent、祖先节点--parents
'''
关联选择demo08--01--上级节点
使用parent属性进行获取--获取父节点
使用parents属性进行获取--获取祖先节点
'''
def demo08():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="story">
Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>
<p>
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a>
</p>
</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 会打印出<body>标签中所有的内容，包括子节点p标签和孙节点a标签等全部的值
print(soup.p.parent)
# 获取第一个a标签的父节点p标签的值，包括当前的这个a标签中的文本内容
print(soup.a.parent)
print("=======================")
# 结果：<generator object PageElement.parents at 0x000001403E6ECC10>
print(soup.a.parents)
for i, parent in enumerate(soup.a.parents):
print(i, parent)5、获取兄弟节点
'''
关联选择demo09--兄弟节点
# 可以使用的属性有：
1、next_sibling
2、previous_sibling
3、next_siblings
4、previous_siblings
'''
def demo09():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="story">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>hello
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>
<a href="http://example.com/a" rel="external nofollow" class="sister" id="link3">a</a>
<a href="http://example.com/b" rel="external nofollow" class="sister" id="link3">b</a>
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 1、使用next_sibling
# 结果：hello
print(soup.a.next_sibling)
# 2、使用next_siblings
# 结果：<generator object PageElement.next_siblings at 0x00000241CA26CC10>
print(soup.a.next_siblings)
# print(list(soup.a.next_siblings))
# 3、使用previous_sibling
# 结果：Once upon a time there were three little sisters; and their names were
print(soup.a.previous_sibling)
# 4、使用previous_siblings
# <generator object PageElement.previous_siblings at 0x000001F4E6E6CBA0>
print(soup.a.previous_siblings)
# print(list(soup.a.previous_siblings))6、方法选择器
1、find_all()
'''
方法选择器 -- find_all() -- 以列表形式返回多个元素
find_all(name, attrs={}, recursive=True, string, limit)
# 1、name: 标签的名称--查找标签
# 2、attrs: 属性过滤器字典
# 3、recursive: 递归查找一个元素的子孙元素们，默认为True
# 4、string:查找文本
# 5、limit: 查找结果的个数限制
'''
def demo10():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="Dormouse"><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" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 1、【基本使用】找到所有的a标签
# 结果：[
# <a class="sister hi" href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1">Elsie</a>,
# <a class="sister" href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link2">Lacie</a>,
# <a class="sister" href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link3">Tillie</a>
# ]
print(soup.find_all("a"))
# for item in soup.find_all("a"):
# print(item.string)
# 2、【属性查找】根据指定的属性字典进行元素的查找，这里查找的是class为sister的元素
print(soup.find_all(attrs={"class": "sister"}))
# 效果同上
print(soup.find_all(class_ = "sister"))
# ============这个没有找到结果，需找到原因============
print(soup.find_all(class_ = "hi"))
# 3、【文本查找】查找文本为Elsie的内容
print(soup.find_all(string="Elsie"))2、find()
'''
方法选择器 -- find() -- 返回单个元素【一般是返回第一个元素作为结果】
'''
def demo11():
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="Dormouse"><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" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link1"><span>Elsie</span></a>,
<a href="http://example.com/lacie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link2"><span>Lacie</span></a> and
<a href="http://example.com/tillie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="sister" id="link3"><span>Tillie</span></a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 结果：<a class="sister" href="http://example.com/elsie" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" id="link1"><span>Elsie</span></a>
print(soup.find("a"))3、其他方法选择器
''' 其他方法选择器 find_parents(): 返回所以的祖先节点 find_parent(): 返回当前节点的父节点 find_next_siblings():返回当前节点后面的所有兄弟节点 find_previous_siblings():返回当前节点后面的相邻的那个兄弟节点 find_next_sibling():返回当前节点前面的所有兄弟节点 find_previous_sibling():返回当前节点前面的相邻的那个兄弟节点 '''
7、CSS选择器--select()
'''
CSS选择器 -- select()方法
'''
def demo12():
html_doc = """
<div class="panel">
<div class="panel-heading">
<h4>Hello World</h4>
</div>
<div class="panel-body">
<ul class="list" id="list-1">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
<ul class="list list-samll" id="list-2">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
</div>
</div>
</div>
"""
soup = BeautifulSoup(html_doc, "lxml")
# 1、获取class为panel-heading的节点
# 结果：[<div class="panel-heading">
# <h4>Hello World</h4>
# </div>]
print(soup.select(".panel-heading"))
# 2、获取ul下的li节点
# 结果：[<li class="element">Foo</li>, <li class="element">Bar</li>, <li class="element">Jay</li>, <li class="element">Foo</li>, <li class="element">Bar</li>, <li class="element">Jay</li>]
print(soup.select("ul li"))
# 3、获取id为list-2下的li节点
# 结果：[<li class="element">Foo</li>, <li class="element">Bar</li>, <li class="element">Jay</li>]
print(soup.select("#list-2 li"))
# 4、获取所有的ul节点
# 结果：[<ul class="list" id="list-1">
# <li class="element">Foo</li>
# <li class="element">Bar</li>
# <li class="element">Jay</li>
# </ul>, <ul class="list list-samll" id="list-2">
# <li class="element">Foo</li>
# <li class="element">Bar</li>
# <li class="element">Jay</li>
# </ul>]
print(soup.select("ul"))
# 结果：<class 'bs4.element.Tag'>
print(type(soup.select('ul')[0]))说明：
# 1、查询所有的子孙节点
在 select(css)中的 css 有多个节点时，节点元素之间用空格分开，就是查找子孙节点，
例如 soup.select(“div p”)是查找所有<div>节点下面的所有子孙<p>节点。# 2、只查直接的子节点，不查孙节点
节点元素之间用" > "分开(注意>的前后至少包含一个空格)，就是查找直接子节点：
# 例如 soup.select(“div > p”)是查找所有<div>节点下面的所有直接子节点<p>，不包含孙节点。# 3、查找某个节点同级别的某类节点
用" ~ "连接两个节点表示查找前一个节点后面的所有同级别的兄弟节点（注意~号前后至少有一个空格），
例如 soup.select(“div ~ p”)查找<div>后面的所有同级别的<p>兄弟节点。# 4、查找同级别某个节点后的第一个某类节点
用" + "连接两个节点表示查找前一个节点后面的第一个同级别的兄弟节点（注意+号前后至少有一个空格）：
例如 soup.select(“div + p”)查找<div>后面的第一个同级别的<p>兄弟节点。
8、嵌套选择--select()
'''
嵌套选择 -- select( )方法
'''
def demo13():
html_doc = """
<div class="panel">
<div class="panel-heading">
<h4>Hello World</h4>
</div>
<div class="panel-body">
<ul class="list" id="list-1">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
<ul class="list list-samll" id="list-2">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
</div>
</div>
</div>
"""
soup = BeautifulSoup(html_doc, 'lxml')
# 运行结果：[<li class="element">Foo</li>, <li class="element">Bar</li>, <li class="element">Jay</li>]
# [<li class="element">Foo</li>, <li class="element">Bar</li>, <li class="element">Jay</li>]
for ul in soup.select('ul'):
print(ul.select('li'))9、获取属性
'''
获取属性(两种方法)
'''
def demo14():
html_doc = """
<div class="panel">
<div class="panel-heading">
<h4>Hello World</h4>
</div>
<div class="panel-body">
<ul class="list" id="list-1">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
<ul class="list list-samll" id="list-2">
<li class="element">Foo</li>
<li class="element">Bar</li>
<li class="element">Jay</li>
</ul>
</div>
</div>
</div>
"""
soup = BeautifulSoup(html_doc, 'lxml')
for ul in soup.select('ul'):
print(ul['id'])
print(ul.attrs['id'])以上就是python BeautifulSoup库的常用操作的详细内容，更多关于python BeautifulSoup的资料请关注脚本之家其它相关文章！