BS4.py

import requests
from bs4 import BeautifulSoup

link = "http://www.santostang.com/"
headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36'}
r = requests.get(link, headers= headers)

soup = BeautifulSoup(r.text, "html.parser")
first_title = soup.find("h1", class_="post-title").a.text.strip()
print("第一篇文章标题是：", first_title)

title_list = soup.find_all("h1", class_="post-title")
for i in range(len(title_list)):
    title = title_list[i].a.text.strip()
    print("第%s篇文章的标题是：%s" %(i+1,title))