想要爬取任意页的图片代码该怎么加

hhad

import requests
import parsel
import os

filename = '壁纸\\'

if not os.path.exists(filename):
    os.mkdir(filename)


url = 'http://www.netbian.com/index.htm'
headers = {
    'user-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.82 Safari/537.36'
}
response = requests.get(url=url, headers=headers)
response.encoding = response.apparent_encoding
#print(response.text)
selector = parsel.Selector(response.text)
href = selector.css('.list li a::attr(href)').getall()
lis = selector.css('.list li')
#print(href)
for li in lis:
    title = li.css('b::text').get()
    if title:
        li_url = 'http://www.netbian.com/' + li.css('a::attr(href)').get()
        response_2 = requests.get(url=li_url, headers=headers)
        selector_2 = parsel.Selector(response_2.text)
        img_url = selector_2.css('.pic img::attr(src)').get()
        img_content = requests.get(url=img_url).content
        with open(filename + title +'.jpg', mode='wb') as f:
            f.write(img_content)
            print(title, img_url)

isdkz

import requests
import parsel
import os

filename = '壁纸\\'

if not os.path.exists(filename):
    os.mkdir(filename)


def main(page=1):
    if page == 1:
        url = 'http://www.netbian.com/index.htm' 
    else:
        url = f'http://www.netbian.com/index_{page}.htm' 
    headers = {
        'user-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.82 Safari/537.36'
    }
    response = requests.get(url=url, headers=headers)
    response.encoding = response.apparent_encoding
    # print(response.text)
    selector = parsel.Selector(response.text)
    href = selector.css('.list li a::attr(href)').getall()
    lis = selector.css('.list li')
    #print(href)
    for li in lis:
        title = li.css('b::text').get()
        if title:
            li_url = 'http://www.netbian.com/' + li.css('a::attr(href)').get()
            response_2 = requests.get(url=li_url, headers=headers)
            selector_2 = parsel.Selector(response_2.text)
            img_url = selector_2.css('.pic img::attr(src)').get()
            img_content = requests.get(url=img_url).content
            with open(filename + title +'.jpg', mode='wb') as f:
                f.write(img_content)
                print(title, img_url)

if __name__ == '__main__':
    main(2)                     # 爬取第二页