from flask import Flask, render_template_string
app = Flask(__name__)@app.route('/get-data')
def get_data():# 读取data.txt文件的内容with open(r'./2024/2/4/data.txt', 'r') as file:data = file.read()print(data)# 返回数据的HTML表示return render_template_string('<div>{{ data }}°C</div>', data=data)@app.route('/')
def index():string='''<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>局部更新示例</title></head><body><div id="data-container">这里将显示data.txt的内容</div><script>document.addEventListener('DOMContentLoaded', function() {const updateData = () => {fetch('/get-data').then(response => response.text()).then(html => {document.getElementById('data-container').innerHTML = html;}).catch(error => console.error('Error:', error));};// 每5秒更新一次内容setInterval(updateData, 1000);});</script></body></html>'''return stringif __name__ == '__main__':app.run(host='0.0.0.0', port=80, debug=True)
