4.1:简单python爬虫

简单python爬虫

 

 

 

 

 

 

 

 

 

 在创建的python文件中输入下列代码:

# coding:utf-8
import requests
from bs4 import BeautifulSoup

def spider(url,headers):
    with open('renming.txt', 'w', encoding='utf-8') as fp:
        r = requests.get(url, headers=headers)
        r.encoding = 'gb2312'
        # test=re.findall('<li>< a href= >(.*?)</ a></li>',r.text)
        # print(test)
        soup = BeautifulSoup(r.text, "html.parser")
        for news_list in soup.find_all(class_="list14"):
            content = news_list.text.strip()
            fp.write(content)
    fp.close()

if __name__=="__main__":
    headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) '
                             'AppleWebKit/537.36 (KHTML, like Gecko)'
                             ' Chrome/55.0.2883.87 Safari/537.36'}  

    url = 'http://www.people.com.cn/'
    spider(url, headers)

如果代码中存在报错,请在PyCharm最下边找到Terminal,点击Terminal后Pycharm底部控制台处会出现其自带的命令行窗口,输入下面两条命令即可解决报错:pip install requestspip install bs4解决完报错之后,在代码文件的任意处右击,点击Run,之后就会发现在代码文件目录中出现了renmin.txt,里面是爬取的人民网的数据。

 

posted @ 2022-06-16 16:20  哥们要飞  阅读(63)  评论(0编辑  收藏  举报