新手學(xué)習(xí)python的的二天，爬取商品信息

最終成果：

2016-11-10 .png

代碼：

from bs4 import BeautifulSoup
with open('/home/ayongga/PycharmProjects/1_2/1_2answer_of_homework/index.html', 'r')as html_data:
    soup = BeautifulSoup(html_data, 'lxml')

    images = soup.select('body > div > div > div.col-md-9 > div > div > div > img')
    titles = soup.select('body > div > div > div.col-md-9 > div > div > div > div.caption > h4 > a')
    prices = soup.select('body > div > div > div.col-md-9 > div > div > div > div.caption > h4.pull-right')
    comments = soup.select('body > div > div > div.col-md-9 > div > div > div > div.ratings > p.pull-right')
    stars = soup.select('body > div > div > div.col-md-9 > div > div > div > div.ratings')

for image,title,price,comment,star in zip(images,titles,prices,comments,stars):
    data = {
        'image':image.get('src'),
        'title':title.get_text(),
        'price':price.get_text(),
        'comment':comment.get_text(),
        'star': len(star.find_all('span',class_='glyphicon glyphicon-star'))
    }
    print(data)

總結(jié)：

• 一對多→找父級
• find_all得到一個(gè)列表，len統(tǒng)計(jì)列表元素的個(gè)數(shù)
• 實(shí)戰(zhàn)對我提升很大