共计 1049 个字符，预计需要花费 3 分钟才能阅读完成。
import json
import re
import requests
from requests import RequestException
def get_one_page(url):
try:
response = requests.get(url)
if response.status_code == 200:
# print(‘2sas’)
print(response.text)
return response.text
return None
except RequestException:
return None
def parse_one_page(html):
# 加上 re.S 后, . 将会匹配换行符
pattern = re.compile(‘<li>.*?list_num.*?>(.*?)</div>.*?pic.*?src=”(.*?)”.*?/></a>.*?name”><a.*?title=”(.*?)”>.*?tuijian”>(.*?)</span>.*?publisher_info.*?title=”(.*?)”.*?biaosheng.*?<span>(.*?)</span>.*?</li>’,re.S)
items = re.findall(pattern,html)
for item in items:
yield {
‘index’:item[0],
‘iamge’:item[1],
‘title’:item[2],
‘tuijian’:item[3],
‘author’:item[4],
‘times’:item[5],
}
def write_content_to_file(content):
with open(‘book.txt’, ‘a’, encoding=’UTF-8′) as f:
f.write(json.dumps(content, ensure_ascii=False) + ‘\n’)
f.close()
def main(page):
url = “http://bang.dangdang.com/” \
“books/fivestars/01.00.00.00.00.00-recent30-0-0-1-” + str(page)
html = get_one_page(url)
parse_one_page(html)
for item in parse_one_page(html):
print(item)
write_content_to_file(item)
if __name__ == “__main__”:
for i in range(1,2):
main(i)
