使用BeautifulSoup和Flask框架实现网页内容的实时推送和更新

from flask import Flask, render_template
from bs4 import BeautifulSoup
import requests
import time

app = Flask(__name__)

def get_title():
    url = "http://pidancode.com" # 需要获取的网页地址
    res = requests.get(url)
    soup = BeautifulSoup(res.text, "html.parser")
    title = soup.title.text # 获取网页标题
    return title

@app.route("/")
def index():
    title = get_title() # 获取网页标题
    return render_template("index.html", title=title)

@app.route("/update")
def update():
    while True:
        title = get_title() # 获取最新的网页标题
        yield "data: {}\n\n".format(title) # 使用 yield 实时推送数据
        time.sleep(5)

if __name__ == "__main__":
    app.run(debug=True)