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Beautifulsoup导入模组

from bs4 import BeautifulSoup
import requests as req

使用BeautifulSoup4下载网页上所有图片

# 新建一个计数器
i = 0
# 遍历所有的图片
for ele in soup.find_all("img"):
    # 检查图片是否为网络图片
    if ele["src"].startswith("https") or ele["src"].startswith("http"):
        # 获取图片内容
        r = req.get(ele["src"])
        # 定义本地储存文件名称，此处定义为 image#数字.png
        filename = "image#" + str(i) + ".png"
        # 打开文件
        with open(filename, "wb") as file:
            # 写入文件
            file.write(r.content)
            # 计数器 + 1
            i += 1

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