一个爬虫的demo，requests，beatuifulsoup使用的

爬虫的demo，requests，beatuifulsoup

import os,re
import requests
import random
import time
from bs4 import BeautifulSoup

user_agent_list = [
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
            "Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1092.0 Safari/536.6",
            "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1090.0 Safari/536.6",
            "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/19.77.34.5 Safari/537.1",
            "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.9 Safari/536.5",
            "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.36 Safari/536.5",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
            "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_0) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1063.0 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1062.0 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1062.0 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
            "Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.0 Safari/536.3",
            "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24",
            "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24"
        ]
UA = random.choice(user_agent_list) ##从self.user_agent_list中随机取出一个字符串
headers = {'User-Agent': UA}  ##构造成一个完整的User-Agent （UA代表的是上面随机取出来的字符串哦）


url0='http://www.tjxqda.com/column/xxdt'
with requests.get(url0, headers=headers, timeout=5) as response:
    # print(type(response.text),response.text)
    # print(type(response.content), response.content)
    # print(type(response.status_code), response.status_code)
    # print(type(response.headers), response.headers)
    # print(type(response.cookies), response.cookies)
    # print(type(response.url), response.url)
    # print(type(response.history), response.history)

    # response.encoding = 'gb18030'
response.encoding=response.apparent_encoding
soup = BeautifulSoup(response.text, 'lxml') 
print(soup.title.text) #打印
title li_list=soup.find('ul', class_='list-main-style').find_all('li') 
# print(li_list) 
for li_quick in li_list: 
print('最灵活的查找方法:', li_quick.get_text()) 
print(li_quick.a.get('href')) 
# print(soup.prettify()) 
# print(soup.select('ul[class="list_16 mt10"]'))[0].text 
# for x in soup.select('li a'): 
# print(x.text)

　　

posted on 2019-08-09 18:57  耀扬  阅读(213)  评论(0)  编辑  收藏  举报

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