old_contents: #-*- coding:utf-8 -*-
  
  def app(environ, start_response):
      status = '200 OK'
      headers = [('Content-type', 'text/html')]
      start_response(status, headers)
      body=["Welcome to Baidu Cloud!\n"]
      return body
  
  from bae.core.wsgi import WSGIApplication
  application = WSGIApplication(app)
  
new_contents: #-*- coding:utf-8 -*-
  
  def app(environ, start_response):
      status = '200 OK'
      headers = [('Content-type', 'text/html')]
      start_response(status, headers)
      body=["Welcome to \n"]
      return body
  
  from bae.core.wsgi import WSGIApplication
  application = WSGIApplication(app)
  
subject: test first