用Python语言编写爬取百度图片中猫和狗的图片各100张,将图片存入相应文件夹,两个文件夹分别为cat和dog的代码

很高兴为您提供以下Python代码来爬取百度图片中的猫和狗图片，并将它们分别存储在cat和dog的文件夹中。请确保在运行代码之前安装了必要的库。

import requests
import os
from bs4 import BeautifulSoup

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'}
 
def save_image(image_url, folder):
    try:
        if not os.path.exists(folder):
            os.makedirs(folder)
 
        response = requests.get(image_url, headers=headers)
        filepath = os.path.join(folder, os.path.basename(image_url))
 
        with open(filepath, 'wb') as f:
            f.write(response.content)
 
        print(f'Saved image: {filepath}')
    except Exception as e:
        print(f'Failed to save image: {image_url}')
        print(e)
 
def get_image_urls(keyword, num_images):
    try:
        url = f'https://image.baidu.com/search/index?tn=baiduimage&word={keyword}&pn=0&rn={num_images}'
        response = requests.get(url, headers=headers)
 
        soup = BeautifulSoup(response.content, 'html.parser')
        results = soup.find_all('img', {'class': 'main_img'})
 
        image_urls = []
        for result in results:
            url = result['data-imgurl']
            image_urls.append(url)
 
        return image_urls
    except Exception as e:
        print(f'Failed to get image URLs for {keyword}')
        print(e)

cat_image_urls = get_image_urls('猫', 100)
dog_image_urls = get_image_urls('狗', 100)

for url in cat_image_urls:
    save_image(url, 'cat')
 
for url in dog_image_urls:
    save_image(url, 'dog')

这段代码将通过使用BeautifulSoup解析HTML代码检索图片，并将其保存到文件夹中。请确保您的网络连接正常，并且您还没有在爬取时违反任何有关数据使用的法规。