old_contents: # -*- coding:utf8 -*-
  # Author: shizhenyu96@gamil.com
  # github: https://github.com/imndszy
  from . import main
  from flask import render_template
  
  
  @main.route('/')
  def index():
      return render_template('advanced.html')
  
  
  @main.route('/login')
  def login():
      return render_template('login.html')
  
  @main.route('/user')
  def user():
      return render_template('user.html')
new_contents: # -*- coding:utf8 -*-
  # Author: shizhenyu96@gamil.com
  # github: https://github.com/imndszy
  from . import main
  from flask import render_template
  
  @main.route('/')
  @main.route('/index')
  def index():
      return render_template('index.html')
  
  
  @main.route('/login')
  def login():
      return render_template('login.html')
  
  @main.route('/user')
  def user():
      return render_template('user.html')
  
  @main.route('/activity')
  def activity():
      return render_template('deatil.html')
subject: fix bug