new_contents: #! /usr/bin/python
  # encoding: utf-8
  
  class car(object):
      '''
      This class the base of car.
      
      '''
      def __init__(self, brand, color, types):
          self.brand = brand
          self.color = color
          self.types = types
          self.speed = 0
          self.running = False
  
      def start(self):
          self.running = True
          self.speedup()
  
      def stop(self):
          self.running = False
          self.speed = 0
  
      def speedup(self, unit=10):
          self.speed += unit
  
      def status(self):
          isRun = 'running' if self.running else 'not running'
          print '请安全驾驶'
          print 'A {color} {brand} {types} is {isRun}'.format(color=self.color, brand=self.brand, types=self.types, isRun=isRun)
  
subject: create car.py