帮我用python语言写一段可以根据关键词爬取全网信息的爬虫工具代码

### 回答1：

可以使用以下代码来编写一个爬虫工具：import requests
from bs4 import BeautifulSoupkeyword = input("请输入搜索关键词:")
page_num = int(input("请输入页码数:"))# 循环遍历每一页
for i in range(page_num):
url = 'https://search.baidu.com/s?wd=' + keyword + '&pn=' + str(i*10)
response = requests.get(url)
soup = BeautifulSoup(response.text, 'html.parser') # 找到所有搜索结果
results = soup.find_all('div', class_='result')
for result in results:
title = result.find('h3')
print(title.get_text())

### 回答2：
import requests
from bs4 import BeautifulSoup

def spider(keyword):
url = "https://www.baidu.com/s"
params = {'wd': keyword}

try:
response = requests.get(url, params=params)
response.raise_for_status()
soup = BeautifulSoup(response.text, 'html.parser')
search_results = soup.find_all('div', class_='result')

for result in search_results:
title = result.find('h3').get_text()
link = result.find('a')['href']
print(f"标题：{title}")
print(f"链接：{link}")
print()

except Exception as e:
print("爬取失败:", repr(e))

keyword = input("请输入关键词：")
spider(keyword)