python（beautiful soup）

from bs4 import BeautifulSoup      #解析库
import requests
content =requests.get("http://books.toscrape.com/").text
soup =BeautifulSoup(content,"html.parser")
all_price =soup.findAll("p",attrs={"class":"price_color"})
for price in all_price:
    print(price)
    print(price.string[2:])
all_titles = soup.findAll("h3")
for title in all_titles:
    all_links =title.findAll("a")#一层一层找
    for link in all_links:
        print(link.string)