【python】爬取4K壁纸保存到本地文件夹

import requests
from bs4 import BeautifulSoup
import os
 
# 图片保存路径
save_path = 'D:/Wallpapers'
 
# 创建保存文件夹
if not os.path.exists(save_path):
    os.makedirs(save_path)
 
# 获取HTML内容
def get_html(url):
    try:
        response = requests.get(url)
        if response.status_code == 200:
            return response.text
    except requests.RequestException:
        return None
 
# 解析HTML获取图片链接
def parse_html(html):
    soup = BeautifulSoup(html, 'html.parser')
    image_urls = [img['src'] for img in soup.find_all('img', class_='img-responsive')]
    return image_urls
 
# 下载图片
def download_image(url, save_path):
    response = requests.get(url)
    if response.status_code == 200:
        file_name = url.split('/')[-1]
        with open(os.path.join(save_path, file_name), 'wb') as f:
            f.write(response.content)
 
# 主函数
def main():
    base_url = 'https://wall.alphacoders.com/by_category.php?id=14287&name=4K+Resolution'
    html = get_html(base_url)
    image_urls = parse_html(html)
    for url in image_urls:
        download_image(url, save_path)
        print(f'Image saved: {url}')
 
if __name__ == '__main__':
    main()

这段代码首先定义了图片保存的路径，并创建相应的文件夹（如果不存在的话）。然后定义了获取HTML内容、解析HTML获取图片链接、下载图片的函数。主函数main()组织这些函数的调用顺序，实现了从网页抓取图片并保存到本地的功能。