如何使用爬虫跳转到下一页？

import requests
from bs4 import BeautifulSoup

def crawl_next_page(url):
    response = requests.get(url)
    if response.status_code == 200:
        # 解析网页内容
        soup = BeautifulSoup(response.text, 'html.parser')
        
        # 定位下一页链接
        next_page_link = soup.find('a', class_='next-page')
        
        if next_page_link:
            # 构造下一页请求
            next_page_url = next_page_link['href']
            
            # 循环爬取下一页
            crawl_next_page(next_page_url)
        else:
            print("已到达最后一页")
    else:
        print("请求失败")

# 调用函数开始爬取
start_url = "http://example.com/page1"
crawl_next_page(start_url)