BeautifulSoup的小问题:
from bs4 import BeautifulSoup
import requests
link = "http://www.cnnvd.org.cn/web/vulnerability/querylist.tag"
req = requests.get(link)
web = req.text
soup = BeautifulSoup(web, "lxml")
cve_name = []
cve_link = []
for par_ in soup.find_all('div', attrs={'class':'fl'}):
for link_ in par_.find_all('p'):
for text_ in link_.find_all('a'):
print (text_.string)
print (text_['href'])
print ("==========")
#cve_name.append(text_.string)
#cve_link.append(text_['href'])
它给了我两次记录:V这可能很容易解决:V
答案 0 :(得分:1)
相同的元素位于页面的两个位置,因此您必须使用find()
/ find_all()
仅选择一个位置,例如{/ 1}}
find(class_='list_list')
完整代码:
soup.find(class_='list_list').find_all('div', attrs={'class':'fl'}):
答案 1 :(得分:0)
这个怎么样?我使用css选择器来做同样的事情。
from bs4 import BeautifulSoup
from urllib.parse import urljoin
import requests
link = "http://www.cnnvd.org.cn/web/vulnerability/querylist.tag"
res = requests.get(link)
soup = BeautifulSoup(res.text, "lxml")
for item in soup.select('.fl p a'):
print("Item: {}\nItem_link: {}".format(item.text,urljoin(link,item['href'])))
部分输出:
Item: CNNVD-201712-811
Item_link: http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-201712-811
Item: CNNVD-201712-810
Item_link: http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-201712-810
Item: CNNVD-201712-809
Item_link: http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-201712-809