python爬虫（二）获取京东python书籍信息

    这个代码主要是为了锻炼对req对ests库和re库方法的熟练度。主要提取了书的书名、作者、出版社、价格等信息

# -*- coding: utf-8 -*-
import requests
import re
from requests.exceptions import RequestException

def get_one_page(url):
	try:
		r = requests.get(url)
		if r.status_code == 200:
			r.encoding= "utf-8"#防止乱码
			return r.text
		return None
	except RequestException:
		return None

def parse_html(html):
	pattern = re.compile(r'.*?.*?'
						 r'.*?
.*?/em>(.*?).*?
.*?([\u4E00-\u9FA5|a-zA-Z\s]*?)(.*?)(.*?)'
						 r'.*?
(.*?)(.*?).*?'
						 r'.*?(.*?).*?'
						 r'.*?
.*?(.*?)(.*?)',re.S)
	img = pattern.findall(html)
	print(len(img))
	for i in img:
        print(i[1])#价格
		print(i[3]+i[4]+i[5])#name
		print(i[6],i[7])#author
		print(i[8])#store
		print(i[9],i[10])
		print()
def main(keyword):
	url = "https://search.jd.com/Search?keyword="+keyword
	html = get_one_page(url)
	parse_html(html)

if __name__ == '__main__':
	keyword = input("请输入：")
	main(keyword)

结果：