从链接中提取域名

import re

def extract_domain_name(url):
    pattern = r'https?://([a-zA-Z0-9.-]+)'
    match = re.search(pattern, url)
    if match:
        return match.group(1)
    else:
        return None

url = "https://www.example.com/page/1"
domain_name = extract_domain_name(url)
print(domain_name)

www.example.com