text: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  # __author__ = 'Liantian'
  # __email__ = "liantian.me+code@gmail.com"
  #
  # MIT License
  #
  # Copyright (c) 2018 liantian
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  import os
  import sys
  from flask import Flask
  from flask import render_template, request
  
  if getattr(sys, 'frozen', False):
      template_folder = os.path.join(sys._MEIPASS, 'templates')
      static_folder = os.path.join(sys._MEIPASS, 'static')
      app = Flask(__name__, template_folder=template_folder, static_folder=static_folder)
  else:
      app = Flask(__name__)
  
  
  @app.route('/')
  def hello_world():
      q = "1+1=2,2+2=4"
      return render_template('index.html', q=q)
  
  
  def run_flask(*args, **kwargs):
      app.run(*args, **kwargs)
  
  
  if __name__ == '__main__':
      run_flask()
  