# -*- coding:utf-8 -*-
# !/user/bin env python3
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" ><!-- Elsie --></a>,
<a href="http://example.com/lacie" class="sister" >Lacie</a> and
<a href="http://example.com/tillie" class="sister" >Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
#标签选择器
soup = BeautifulSoup(html,"html.parser")
"""
print(soup.title)
print(soup.title.name)
print(soup.title.text)
print(soup.head)
print(soup.p)
print(soup.a)
#获取属性
print("====获取属性====")
print(soup.p["name"])
print(soup.p.attrs["name"])
#获取内容
print("====获取内容====")
print(soup.p.string)
print(soup.p.text)
#获取子节点,content属性将子节点以列表的形式输出，可以通过列表索引来获取元素
print("====获取子节点====")
print(soup.p.contents)
print(soup.p.contents[0])
print(soup.p.parent)
print(soup.p.parent.name)
content=soup.head.title.string
for parent in content.parents:
print(parent.name)
"""
#标准选择器
"""
print(soup.find_all("a")[0])
print(soup.find_all("a"))
print(soup.find_all(attrs={'name':'dromouse'}))
print(soup.find_all(class_ = "title"))
print(soup.find_all(text = "The Dormouse's story"))
print(soup.find_all("a",limit = 1))
print(soup.find("a"))
"""
#css选择器
# print(soup.select(".story .sister")) #打印class属性为story的标签中class属性为sister的元素，需要加点
# print(soup.select("p a")) #打印p标签中a标签的内容
# print(soup.select("#link2")) #打印id为link2标签的内容
# print(soup.select("p")[0]) #打印的是第一个p标签的内容
# print(soup.select("p")[0]["class"]) #打印第一个p标签中class属性的名称
# print(soup.select("p")[0].get_text)
# print(soup.select("p")[0].text)
print(soup.prettify())
