python爬虫百度

以下是使用Python爬虫爬取百度搜索结果的示例代码：

import requests
from bs4 import BeautifulSoup

# 搜索关键词
keyword = 'Python'

# 构造请求头
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'}

# 构造请求URL
url = 'https://www.baidu.com/s?wd=' + keyword

# 发送请求
response = requests.get(url, headers=headers)

# 解析HTML
soup = BeautifulSoup(response.text, 'html.parser')

# 获取搜索结果
results = soup.find_all('div', class_='result')

# 输出搜索结果
for result in results:
    title = result.h3.get_text()
    link = result.h3.a['href']
    abstract = result.find(class_='c-abstract').get_text()
    print(title)
    print(link)
    print(abstract)
    print('------------------------')

该代码使用requests库发送HTTP请求，使用BeautifulSoup库解析HTML，然后从搜索结果中提取标题、链接和摘要，并输出到控制台。