BS4初级

　　BS4初级：
#coding:utf-8
from bs4 import BeautifulSoup
html = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title" name="dromouse"><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"><!-- E
lsie --></a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie<
/a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tilli
e</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""

soup=BeautifulSoup(html,"lxml") #"lxml解析方式"
soup1=BeautifulSoup(html,"html.parser") #常规网页解析，
#soup2=BeautifulSoup(html,"html5lib") #HTML5解析 ,只是解析方法不一样，结果一样

print(soup.title) #提取标签
print(soup.head)  #提取标签全部内容
#print(soup.body)
print(soup.a)  #多个标签提取第一个
print(soup.p)

print(soup.name)
print(soup.title.name)  #name就是标签的名字
print(soup.head.name)

print(soup.title.attrs)
print(soup.p.attrs)  #标签内部的属性
print(soup.p["class"]) #取出标签的内部属性
print(soup.p["name"])

print(soup.title.string) #取出标签之间的内容
posted on 2020-03-11 10:37 共感的艺术阅读(76) 评论(0) 收藏举报