Beautifulsoup分解

from urllib.request import Request, ProxyHandler
from urllib.request import build_opener
from bs4 import BeautifulSoup
import redis
urlfront = "http://www.xicidaili.com"
url = "http://www.xicidaili.com/nn/1"
r = redis.Redis(host=‘127.0.0.1‘, port=6379,db=0)

# def spider_IP(url):
# 获取整个页面
def get_allcode(url):
    # 设置代理IP
    proxy = {‘https‘: ‘110.73.0.45:8123‘}
    proxy_support = ProxyHandler(proxy);
    opener = build_opener(proxy_support)
    # 设置访问http协议头,模拟浏览器
    opener.addheaders = [
        (‘User-agent‘, ‘Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6‘)]
    r = opener.open(url)
    html = r.read().decode("UTF-8");
    # print(html)
    return str(html)

# 根据URl用beautifulsoup提取,可以写方法
def find_ip(s):
    soup = BeautifulSoup(s, ‘html.parser‘);
    aList = soup.find_all(name="tr",class_="odd")
    for items in aList:
        link = items.find_all("td")
        print("%s:%s" %(link[1].get_text(),link[2].get_text()))
find_ip(get_allcode(url))