Python爬虫百度汽车前100张图片

以下是使用Python编写的爬虫程序，可以从百度汽车搜索结果中获取前100张图片：

import requests
from bs4 import BeautifulSoup
import os

def get_image_urls(search_term):
    url = f"https://image.baidu.com/search/index?tn=baiduimage&word={search_term}"
    response = requests.get(url)
    soup = BeautifulSoup(response.text, "html.parser")
    img_tags = soup.find_all("img", class_="main_img")
    img_urls = [img["src"] for img in img_tags]
    return img_urls[:100]

def download_images(search_term):
    img_urls = get_image_urls(search_term)
    if not os.path.exists(search_term):
        os.makedirs(search_term)
    for i, url in enumerate(img_urls):
        response = requests.get(url)
        file_name = os.path.join(search_term, f"{search_term}_{i}.jpg")
        with open(file_name, "wb") as f:
            f.write(response.content)
        print(f"Downloaded {file_name}")

if __name__ == "__main__":
    search_term = "汽车"
    download_images(search_term)

该程序首先定义了一个get_image_urls函数，它接受一个搜索词作为参数，并返回前100张相关图片的URL。

然后定义了一个download_images函数，它使用get_image_urls函数获取图片URL，然后下载每个图片并保存到以搜索词为名的文件夹中。

最后，在程序的main函数中，将搜索词设置为“汽车”，并调用download_images函数来下载相关图片。