python入门实战:爬取图片到本地

    简单记录一下爬取网站图片保存到本地指定目录过程,希望对刚入门的小伙伴有所帮助!
    目标网站就是下图所示页面:

实现步骤:
    1.爬取每页的图片地址集合
    2.下载图片到本地
    3. 获取指定页数的页面路径
以下是实现代码:

import bs4
import requests
import os
# 下载图片到本地 
def down_load_img(local_path,img_url):img_name = os.path.basename(img_url[img_url.rfind("/")+1:len(img_url)])with open(f"{local_path}\{img_name}","wb") as imgFile:res = requests.get(img_url)if res.status_code == 200:resp = imgFile.write(res.content)if resp is not None:print(f"{img_name}下载成功!")else:print(f"{img_name}下载失败!")else:print(f"{img_name}请求失败,下载失败!")# 获取每页的图片地址
def get_img_url(website_url):return_img_url_list=[]res = requests.get(website_url)if res.status_code != 200:print("请求失败!")website_content = res.contentsoup = bs4.BeautifulSoup(website_content, "html.parser")img_url_list = soup.find_all("div", class_="pic")for imgUrl in img_url_list:style_info = imgUrl["style"]img = style_info[style_info.find("(") + 1:style_info.find(")")]return_img_url_list.append(img)return return_img_url_list
# 获取指定页数的页面路径
def get_website_url(page_num):website_format="https://pic.netbian.top/4kmeinv/index_{}.html"web_site_url_list=[]for i in range(1,page_num+1):web_site_url_list.append(f"https://pic.netbian.top/4kmeinv/index_{i}.html")return web_site_url_listif __name__ == '__main__':local_path="D:\mvImg"page_num=2for website_url in get_website_url(page_num):for img_url in get_img_url(website_url):down_load_img(local_path,img_url)