汽车类用python 代码实现

悠悠 2023-07-12 05:07 1阅读 0赞

1、定义一个汽车类

class Car():
    	def __init__(self, make, model, year):
    		"""init car edscriptive """
    		self.make = make
    		self.model = model
    		self.year = year
    		self.odometer_reading = 0
    		
    	def get_descriptive_name(self):
    		"""return all descriptive """
    		long_name = str(self.year) + '  ' + self.make +  '  ' + self.model
    		return long_name.title()
    		
    	def read_odometer(self):
    		"""print car drive kelemter information"""
    		print("This car has " + str (self.odometer_reading)  + "  miles on it")
    	def update_odometer_reading(self,mileage):
    		""" set odometer display value"""
    		if mileage >= self.odometer_reading:
    			self.odometer_reading = mileage
    		else:
    			print("You cann't roll back an odometer")
    	
    	def increment_odometer(self,miles):
    		"""add mileage"""
    		self.odometer_reading +=miles
    	
    
    my_new_car = Car('audi', 'a4', 2016)
    print(my_new_car.get_descriptive_name())
    my_new_car.odometer_reading = 23
    
    my_new_car.read_odometer()
    my_new_car.update_odometer_reading(60)
    
    
    my_used_car = Car('subaru', 'outback', '2012')
    my_used_car.update_odometer_reading(23500)
    my_used_car.read_odometer()
    
    my_used_car.increment_odometer(100)
    my_used_car.read_odometer()

运行结果：

2016  Audi  A4
    This car has 23  miles on it
    This car has 23500  miles on it
    This car has 23600  miles on it
    
    
    ------------------
    (program exited with code: 0)
    Press return to continue

2、类的继承： ElectricalCar 去继承Car ElectricalCar 具有汽车一般属性

class Car():
    	def __init__(self, make, model, year):
    		"""init car edscriptive """
    		self.make = make
    		self.model = model
    		self.year = year
    		self.odometer_reading = 0
    		
    	def get_descriptive_name(self):
    		"""return all descriptive """
    		long_name = str(self.year) + '  ' + self.make +  '  ' + self.model
    		return long_name.title()
    		
    	def read_odometer(self):
    		"""print car drive kelemter information"""
    		print("This car has " + str (self.odometer_reading)  + "  miles on it")
    	def update_odometer_reading(self,mileage):
    		""" set odometer display value"""
    		if mileage >= self.odometer_reading:
    			self.odometer_reading = mileage
    		else:
    			print("You cann't roll back an odometer")
    	
    	def increment_odometer(self,miles):
    		"""add mileage"""
    		self.odometer_reading +=miles
    	
    
    	
    class ElectricCar(Car):
    	"""electirc car special information"""	
    	def __init__(self,make,model,year):
    		super().__init__(make,model,year)
    		self.battery  = 70
    
    		
    		
    my_tesla = ElectricCar('tesla', 'model s', '2016')
    print(my_tesla.get_descriptive_name())

运行结果:

2016  Tesla  Model S
    
    
    ------------------
    (program exited with code: 0)
    Press return to continue

3、将实例用作属性

class Car():
    	def __init__(self, make, model, year):
    		"""init car edscriptive """
    		self.make = make
    		self.model = model
    		self.year = year
    		self.odometer_reading = 0
    		
    	def get_descriptive_name(self):
    		"""return all descriptive """
    		long_name = str(self.year) + '  ' + self.make +  '  ' + self.model
    		return long_name.title()
    		
    	def read_odometer(self):
    		"""print car drive kelemter information"""
    		print("This car has " + str (self.odometer_reading)  + "  miles on it")
    	def update_odometer_reading(self,mileage):
    		""" set odometer display value"""
    		if mileage >= self.odometer_reading:
    			self.odometer_reading = mileage
    		else:
    			print("You cann't roll back an odometer")
    	
    	def increment_odometer(self,miles):
    		"""add mileage"""
    		self.odometer_reading +=miles
    	
    class Battery():
    	"""once time electirc simple try """
    	def __init__(self,battery_size=70):
    		"""init battery information"""
    		self.battery_size = battery_size
    		
    	def describe_battery(self):
    		"""print descriptive battery size information"""
    		print("This car has "  + str(self.battery_size) + "-Kwh battey.")
    	
    class ElectricCar(Car):
    	"""electirc car special whele"""	
    	def __init__(self,make,model,year):
    		super().__init__(make,model,year)
    		self.battery  = Battery()
    		
    		
    my_tesla = ElectricCar('tesla', 'model s', '2016')
    print(my_tesla.get_descriptive_name())
    my_tesla.battery.describe_battery()

运行结果

2016  Tesla  Model S
    This car has 70-Kwh battey.
    
    
    ------------------
    (program exited with code: 0)
    Press return to continue