python爬虫淘宝翻页爬取

以下是Python爬虫淘宝翻页爬取的示例代码：

import requests
from lxml import etree
import time

def get_datas(url, page_num):
    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'}
    for j in range(1, page_num + 1):
        try:
            num = browser.find_element_by_xpath('//*[@id="mainsrp-pager"]/div/div/div/div[2]/input')
            num.clear()
            num.send_keys(j + 1)
            browser.find_element_by_xpath('//*[@id="mainsrp-pager"]/div/div/div/div[2]/span[3]').click()
            time.sleep(5)
            print("已爬取{}页，程序休息.....{}s".format(j, 5))
        except:
            continue
    response = requests.get(url, headers=headers)
    html = etree.HTML(response.text)
    items = html.xpath('//div[@class="item J_MouserOnverReq  "]')
    for item in items:
        title = item.xpath('.//div[@class="title"]/a/text()')[0]
        price = item.xpath('.//div[@class="price g_price g_price-highlight"]/strong/text()')[0]
        print(title, price)

if __name__ == '__main__':
    url = 'https://s.taobao.com/search?q=%E5%B0%8F%E7%B1%B3%E6%89%8B%E6%9C%BA&imgfile=&js=1&stats_click=search_radio_all%3A1&initiative_id=staobaoz_20211028&ie=utf8'
    page_num = 3
    get_datas(url, page_num)