前端：

base.html

    
             
         
        
        
           {% block style %}{% endblock %}        
     
            
      
                
       
                    
        home                    
        首页                
       
            
      
     
{% block container %}{% endblock %}{% block script %}{% endblock %}

子页面：

{% extends "base.html" %}{% block title %} 首页 {% endblock %}{% block style %}{% endblock %}{% block container %}
     
{% endblock %}

server.py:

# -*- coding: utf-8 -*-import requestsimport demjsonimport operatorimport loggingimport constimport wj_userimport wj_tokenfrom flask import Flaskfrom flask import requestfrom flask import render_templatefrom flask import jsonifyfrom recieve import recieve_msg_processfrom send import send_msg_processapp = Flask(__name__)app.logger.setLevel(logging.INFO)@app.route('/admin', methods=['GET'])def hello_world():    return 'hello world, this is JuGuang!!'@app.route('/home', methods=['GET'])def home():    return render_template("home.html")@app.route('/login', methods=['GET'])def login():    if request.method == 'GET':        return render_template("login.html")    else:        pass@app.route('/register', methods=['GET'])def register():    return render_template("register.html")if __name__ == '__main__':    app.run(host='0.0.0.0', port=4567, debug=True)