python爬取百度

要使用Python爬取百度搜索结果，你可以使用requests库和BeautifulSoup库来发送HTTP请求并解析HTML页面。首先，你需要导入这两个库：

import requests
from bs4 import BeautifulSoup

接下来，你可以定义一个函数，例如get_baidu_search_result，来传入关键字作为参数。在函数中，你可以设置要爬取的URL和请求头信息：

def get_baidu_search_result(keyword):
url = 'https://www.baidu.com/s'
params = {'wd': keyword}
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}

然后，你可以使用requests库发送GET请求，并将响应内容传给BeautifulSoup库进行解析：

response = requests.get(url, params=params, headers=headers)
soup = BeautifulSoup(response.text, 'html.parser')

接着，你可以使用BeautifulSoup库的find_all方法查找搜索结果的div元素，并提取标题、链接和描述信息：

results = soup.find_all('div', class_='result')
for result in results:
try:
title = result.h3.a.text
link = result.h3.a['href']
desc = result.find('div', class_='c-abstract').text
print(title)
print(link)
print(desc)
except:
pass

最后，你可以在主函数中调用get_baidu_search_result，并传入你想要搜索的关键字：

if __name__ == '__main__':
keyword = 'Python'
get_baidu_search_result(keyword)

这样，你就可以使用Python爬取百度搜索结果，并将标题、链接和描述信息打印出来了。记得要根据自己的需求进行进一步的处理和存储。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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