请你用Python编写一个功能强大的爬虫，爬取网址https://pic.netbian.com/index.html的图片并显示爬取结果

在Python中，我们可以使用requests库获取网页内容，BeautifulSoup解析HTML，然后使用正则表达式或专门的图像识别库如Pillow来提取图片链接。下面是一个简单的示例，展示如何使用BeautifulSoup爬取并保存图片：

import requests
from bs4 import BeautifulSoup
import re
import os

# 请求目标页面
url = "https://pic.netbian.com/index.html"
response = requests.get(url)
content = response.text

# 使用BeautifulSoup解析HTML
soup = BeautifulSoup(content, 'html.parser')

# 找到所有的img标签
img_tags = soup.find_all('img')

# 爬取图片URL
image_urls = [img['src'] for img in img_tags]

# 创建存储目录（如果不存在）
if not os.path.exists('downloaded_images'):
    os.makedirs('downloaded_images')

# 下载并保存图片
for i, url in enumerate(image_urls):
    # 处理相对路径为http开头的情况，确保完整的URL
    if not url.startswith("http"):
        base_url = re.search(r'(http|https)://', content).group()
        full_url = f"{base_url}{url}"
    else:
        full_url = url
    
    try:
        with requests.get(full_url, stream=True) as img_request:
            img_request.raise_for_status()  # 检查请求是否成功
            filename = f'downloaded_images/image_{i+1}.jpg'
            with open(filename, 'wb') as f:
                for chunk in img_request.iter_content(chunk_size=8192):  # 分块下载，防止内存溢出
                    if chunk:
                        f.write(chunk)
                        f.flush()
    except Exception as e:
        print(f"Error downloading image {full_url}: {e}")

print("图片已成功爬取并保存至downloaded_images文件夹。")